Update jiggablend-runner script to accept additional runner flags

- Modified the jiggablend-runner script to allow passing extra flags during execution, enhancing flexibility for users.
- Updated usage instructions to reflect the new syntax, providing examples for better clarity on how to utilize the runner with various options.

.gitea/workflows/test-pr.yaml

@@ -12,6 +12,5 @@ jobs:
           go-version-file: 'go.mod'
       - uses: FedericoCarboni/setup-ffmpeg@v3
       - run: go mod tidy
-      - run: cd web && npm install && npm run build
       - run: go build ./...
       - run: go test -race -v -shuffle=on ./...

.gitignore

@@ -43,16 +43,6 @@ runner-secrets-*.json
 jiggablend-storage/
 jiggablend-workspaces/
 
-# Node.js
-web/node_modules/
-web/dist/
-web/.vite/
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-pnpm-debug.log*
-lerna-debug.log*
-
 # IDE
 .vscode/
 .idea/

.goreleaser.yaml

@@ -3,7 +3,6 @@ version: 2
 before:
   hooks:
     - go mod tidy -v
-    - sh -c "cd web && npm install && npm run build"
 
 builds:
   - id: default

Makefile

@@ -5,11 +5,8 @@ build:
 	@echo "Building with GoReleaser..."
 	goreleaser build --clean --snapshot --single-target
 	@mkdir -p bin
-	@find dist -name jiggablend -type f -exec cp {} bin/jiggablend \;
-
-# Build web UI
-build-web: clean-web
-	cd web && npm install && npm run build
+	@find dist -name jiggablend -type f -exec cp {} bin/jiggablend.new \;
+	@mv -f bin/jiggablend.new bin/jiggablend
 
 # Cleanup manager logs
 cleanup-manager:
@@ -63,7 +60,7 @@ clean-bin:
 
 # Clean web build artifacts
 clean-web:
-	rm -rf web/dist/
+	@echo "No generated web artifacts to clean."
 
 # Run tests
 test:
@@ -75,7 +72,7 @@ help:
 	@echo ""
 	@echo "Build targets:"
 	@echo "  build            - Build jiggablend binary with embedded web UI"
-	@echo "  build-web        - Build web UI only"
+	@echo "  build-web        - Validate web UI assets (no build required)"
 	@echo ""
 	@echo "Run targets:"
 	@echo "  run              - Run manager and runner in parallel (for testing)"
@@ -90,7 +87,7 @@ help:
 	@echo ""
 	@echo "Other targets:"
 	@echo "  clean-bin        - Clean build artifacts"
-	@echo "  clean-web        - Clean web build artifacts"
+	@echo "  clean-web        - Clean generated web artifacts (currently none)"
 	@echo "  test             - Run Go tests"
 	@echo "  help             - Show this help"
 	@echo ""

README.md

@@ -12,20 +12,20 @@ Both manager and runner are part of a single binary (`jiggablend`) with subcomma
 ## Features
 
 - **Authentication**: OAuth (Google and Discord) and local authentication with user management
-- **Web UI**: Modern React-based interface for job submission and monitoring
+- **Web UI**: Server-rendered Go templates with HTMX fragments for job submission and monitoring
 - **Distributed Rendering**: Scale across multiple runners with automatic job distribution
-- **Real-time Updates**: WebSocket-based progress tracking and job status updates
-- **Video Encoding**: Automatic video encoding from EXR/PNG sequences with multiple codec support:
-  - H.264 (MP4) - SDR and HDR support
-  - AV1 (MP4) - With alpha channel support
-  - VP9 (WebM) - With alpha channel and HDR support
-- **Output Formats**: PNG, JPEG, EXR, and video formats (MP4, WebM)
+- **Real-time Updates**: Polling-based UI updates with lightweight HTMX refreshes
+- **Video Encoding**: Automatic video encoding from EXR sequences only. EXR→video always uses HDR (HLG, 10-bit); no option to disable. Codecs:
+  - H.264 (MP4) - HDR (HLG)
+  - AV1 (MP4) - Alpha channel support, HDR
+  - VP9 (WebM) - Alpha channel and HDR
+- **Output Formats**: EXR frame sequence only, or EXR + video (H.264, AV1, VP9). Blender always renders EXR.
 - **Blender Version Management**: Support for multiple Blender versions with automatic detection
 - **Metadata Extraction**: Automatic extraction of scene metadata from Blender files
 - **Admin Panel**: User and runner management interface
 - **Runner Management**: API key-based authentication for runners with health monitoring
-- **HDR Support**: Preserve HDR range in video encoding with HLG transfer function
-- **Alpha Channel**: Preserve alpha channel in video encoding (AV1 and VP9)
+- **HDR**: EXR→video is always encoded as HDR (HLG, 10-bit). There is no option to turn it off; for SDR-only output, download the EXR frames and encode locally.
+- **Alpha**: Alpha is always preserved in EXR frames. In video, alpha is preserved when present in the EXR for AV1 and VP9; H.264 MP4 does not support alpha.
 
 ## Prerequisites
 
@@ -37,8 +37,8 @@ Both manager and runner are part of a single binary (`jiggablend`) with subcomma
 
 ### Runner
 - Linux amd64
-- Blender installed (can use bundled versions from storage)
 - FFmpeg installed (required for video encoding)
+- Able to run Blender (the runner gets the job’s required Blender version from the manager; it does not need Blender pre-installed)
 
 ## Installation
 
@@ -68,7 +68,7 @@ make init-test
 
 This will:
 - Enable local authentication
-- Set a fixed API key for testing
+- Set a fixed API key for testing: `jk_r0_test_key_123456789012345678901234567890`
 - Create a test admin user (test@example.com / testpassword)
 
 #### Manual Configuration
@@ -154,10 +154,22 @@ bin/jiggablend runner --api-key <your-api-key>
 # With custom options
 bin/jiggablend runner --manager http://localhost:8080 --name my-runner --api-key <key> --log-file runner.log
 
+# Hardware compatibility flags (force CPU + disable HIPRT)
+bin/jiggablend runner --api-key <key> --force-cpu-rendering --disable-hiprt
+
 # Using environment variables
 JIGGABLEND_MANAGER=http://localhost:8080 JIGGABLEND_API_KEY=<key> bin/jiggablend runner
 ```
 
+### Render Chunk Size Note
+
+For one heavy production scene/profile, chunked rendering (`frames 800-804` in one Blender process) was much slower than one-frame tasks:
+
+- Chunked task (`800-804`): `27m49s` end-to-end (`Task assigned` -> last `Saved`)
+- Single-frame tasks (`800`, `801`, `802`, `803`, `804`): `15m04s` wall clock total
+
+In that test, any chunk size greater than `1` caused a major slowdown after the first frame. Fresh installs should already have it set to `1`, but if you see similar performance degradation, try forcing one frame per task (hard reset Blender each frame): `jiggablend manager config set frames-per-render-task 1`. If `1` is worse on your scene/hardware, benchmark and use a higher chunk size instead.
+
 ### Running Both (for Testing)
 
 ```bash
@@ -217,9 +229,9 @@ jiggablend/
 │   ├── executils/        # Execution utilities
 │   ├── scripts/          # Python scripts for Blender
 │   └── types/             # Shared types and models
-├── web/                   # React web UI
-│   ├── src/              # Source files
-│   └── dist/             # Built files (embedded in binary)
+├── web/                   # Embedded templates + static assets
+│   ├── templates/        # Go HTML templates and partials
+│   └── static/           # CSS/JS assets
 ├── go.mod
 └── Makefile
 ```
@@ -266,29 +278,25 @@ jiggablend/
 - `GET /api/admin/stats` - System statistics
 
 ### WebSocket
-- `WS /api/ws` - WebSocket connection for real-time updates
-  - Subscribe to job channels: `job:{jobId}`
-  - Receive job status updates, progress, and logs
+- `WS /api/jobs/ws` - Optional API channel for advanced clients
+- The default web UI uses polling + HTMX for status updates and task views.
 
 ## Output Formats
 
-The system supports the following output formats:
+The system supports the following output formats. Blender always renders EXR (linear); the chosen format is the deliverable (frames only or frames + video).
 
-### Image Formats
-- **PNG** - Standard PNG output
-- **JPEG** - JPEG output
-- **EXR** - OpenEXR format (HDR)
+### Deliverable Formats
+- **EXR** - EXR frame sequence only (no video)
+- **EXR_264_MP4** - EXR frames + H.264 MP4 (always HDR, HLG)
+- **EXR_AV1_MP4** - EXR frames + AV1 MP4 (alpha support, always HDR)
+- **EXR_VP9_WEBM** - EXR frames + VP9 WebM (alpha and HDR)
 
-### Video Formats
-- **EXR_264_MP4** - H.264 encoded MP4 from EXR sequence (SDR or HDR)
-- **EXR_AV1_MP4** - AV1 encoded MP4 from EXR sequence (with alpha channel support)
-- **EXR_VP9_WEBM** - VP9 encoded WebM from EXR sequence (with alpha channel and HDR support)
+Video encoding (EXR→video) is always HDR (HLG, 10-bit); there is no option to output SDR video. For SDR-only, download the EXR frames and encode locally.
 
 Video encoding features:
 - 2-pass encoding for optimal quality
-- HDR preservation using HLG transfer function
+- EXR→video only (no PNG source); always HLG (HDR), 10-bit, full range
 - Alpha channel preservation (AV1 and VP9 only)
-- Automatic detection of source format (EXR or PNG)
 - Software encoding (libx264, libaom-av1, libvpx-vp9)
 
 ## Storage Structure
@@ -320,16 +328,8 @@ go test ./... -timeout 30s
 
 ### Web UI Development
 
-The web UI is built with React and Vite. To develop the UI:
-
-```bash
-cd web
-npm install
-npm run dev  # Development server
-npm run build  # Build for production
-```
-
-The built files are embedded in the Go binary using `embed.FS`.
+The web UI is server-rendered from embedded templates and static assets in `web/templates` and `web/static`.
+No Node/Vite build step is required.
 
 ## License
 

cmd/jiggablend/cmd/managerconfig.go

@@ -8,6 +8,7 @@ import (
 	"encoding/hex"
 	"fmt"
 	"os"
+	"strconv"
 	"strings"
 
 	"jiggablend/internal/config"
@@ -381,6 +382,25 @@ var setGoogleOAuthCmd = &cobra.Command{
 
 var setDiscordOAuthRedirectURL string
 
+var setFramesPerRenderTaskCmd = &cobra.Command{
+	Use:   "frames-per-render-task <n>",
+	Short: "Set number of frames per render task (min 1)",
+	Long:  `Set how many frames to batch into each render task. Job frame range is divided into chunks of this size. Default is 10.`,
+	Args:  cobra.ExactArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		n, err := strconv.Atoi(args[0])
+		if err != nil || n < 1 {
+			exitWithError("frames-per-render-task must be a positive integer")
+		}
+		withConfig(func(cfg *config.Config, db *database.DB) {
+			if err := cfg.SetInt(config.KeyFramesPerRenderTask, n); err != nil {
+				exitWithError("Failed to set frames_per_render_task: %v", err)
+			}
+			fmt.Printf("Frames per render task set to %d\n", n)
+		})
+	},
+}
+
 var setDiscordOAuthCmd = &cobra.Command{
 	Use:   "discord-oauth <client-id> <client-secret>",
 	Short: "Set Discord OAuth credentials",
@@ -558,6 +578,7 @@ func init() {
 	configCmd.AddCommand(setCmd)
 	setCmd.AddCommand(setFixedAPIKeyCmd)
 	setCmd.AddCommand(setAllowedOriginsCmd)
+	setCmd.AddCommand(setFramesPerRenderTaskCmd)
 	setCmd.AddCommand(setGoogleOAuthCmd)
 	setCmd.AddCommand(setDiscordOAuthCmd)
 

cmd/jiggablend/cmd/runner.go

@@ -37,6 +37,8 @@ func init() {
 	runnerCmd.Flags().String("log-level", "info", "Log level (debug, info, warn, error)")
 	runnerCmd.Flags().BoolP("verbose", "v", false, "Enable verbose logging (same as --log-level=debug)")
 	runnerCmd.Flags().Duration("poll-interval", 5*time.Second, "Job polling interval")
+	runnerCmd.Flags().Bool("force-cpu-rendering", false, "Force CPU rendering for all jobs (disables GPU rendering)")
+	runnerCmd.Flags().Bool("disable-hiprt", false, "Disable HIPRT acceleration in Blender Cycles")
 
 	// Bind flags to viper with JIGGABLEND_ prefix
 	runnerViper.SetEnvPrefix("JIGGABLEND")
@@ -51,6 +53,8 @@ func init() {
 	runnerViper.BindPFlag("log_level", runnerCmd.Flags().Lookup("log-level"))
 	runnerViper.BindPFlag("verbose", runnerCmd.Flags().Lookup("verbose"))
 	runnerViper.BindPFlag("poll_interval", runnerCmd.Flags().Lookup("poll-interval"))
+	runnerViper.BindPFlag("force_cpu_rendering", runnerCmd.Flags().Lookup("force-cpu-rendering"))
+	runnerViper.BindPFlag("disable_hiprt", runnerCmd.Flags().Lookup("disable-hiprt"))
 }
 
 func runRunner(cmd *cobra.Command, args []string) {
@@ -63,6 +67,8 @@ func runRunner(cmd *cobra.Command, args []string) {
 	logLevel := runnerViper.GetString("log_level")
 	verbose := runnerViper.GetBool("verbose")
 	pollInterval := runnerViper.GetDuration("poll_interval")
+	forceCPURendering := runnerViper.GetBool("force_cpu_rendering")
+	disableHIPRT := runnerViper.GetBool("disable_hiprt")
 
 	var r *runner.Runner
 
@@ -118,7 +124,7 @@ func runRunner(cmd *cobra.Command, args []string) {
 	}
 
 	// Create runner
-	r = runner.New(managerURL, name, hostname)
+	r = runner.New(managerURL, name, hostname, forceCPURendering, disableHIPRT)
 
 	// Check for required tools early to fail fast
 	if err := r.CheckRequiredTools(); err != nil {
@@ -161,6 +167,9 @@ func runRunner(cmd *cobra.Command, args []string) {
 		runnerID, err = r.Register(apiKey)
 		if err == nil {
 			logger.Infof("Registered runner with ID: %d", runnerID)
+			// Download latest Blender and detect HIP vs NVIDIA so we only force CPU for Blender < 4.x when using HIP
+			logger.Info("Detecting GPU backends (HIP/NVIDIA) for Blender < 4.x policy...")
+			r.DetectAndStoreGPUBackends()
 			break
 		}
 

installer.sh

@@ -0,0 +1,113 @@
+#!/bin/bash
+
+set -euo pipefail
+
+# Simple script to install the latest jiggablend binary for Linux AMD64
+# and create wrapper scripts for manager and runner using test setup
+
+# Dependencies: curl, jq, tar, sha256sum, sudo (for installation to /usr/local/bin)
+
+REPO="s1d3sw1ped/jiggablend"
+API_URL="https://git.s1d3sw1ped.com/api/v1/repos/${REPO}/releases/latest"
+ASSET_NAME="jiggablend-linux-amd64.tar.gz"
+
+echo "Fetching latest release information..."
+RELEASE_JSON=$(curl -s "$API_URL")
+
+TAG=$(echo "$RELEASE_JSON" | jq -r '.tag_name')
+echo "Latest version: $TAG"
+
+ASSET_URL=$(echo "$RELEASE_JSON" | jq -r ".assets[] | select(.name == \"$ASSET_NAME\") | .browser_download_url")
+if [ -z "$ASSET_URL" ]; then
+  echo "Error: Asset $ASSET_NAME not found in latest release."
+  exit 1
+fi
+
+CHECKSUM_URL=$(echo "$RELEASE_JSON" | jq -r '.assets[] | select(.name == "checksums.txt") | .browser_download_url')
+if [ -z "$CHECKSUM_URL" ]; then
+  echo "Error: checksums.txt not found in latest release."
+  exit 1
+fi
+
+echo "Downloading $ASSET_NAME..."
+curl -L -o "$ASSET_NAME" "$ASSET_URL"
+
+echo "Downloading checksums.txt..."
+curl -L -o "checksums.txt" "$CHECKSUM_URL"
+
+echo "Verifying checksum..."
+if ! sha256sum --ignore-missing --quiet -c checksums.txt; then
+  echo "Error: Checksum verification failed."
+  rm -f "$ASSET_NAME" checksums.txt
+  exit 1
+fi
+
+echo "Extracting..."
+tar -xzf "$ASSET_NAME"
+
+echo "Installing binary to /usr/local/bin (requires sudo)..."
+sudo install -m 0755 jiggablend /usr/local/bin/
+
+echo "Creating manager wrapper script..."
+cat << 'EOF' > jiggablend-manager.sh
+#!/bin/bash
+
+set -euo pipefail
+
+# Wrapper to run jiggablend manager with test setup
+# Run this in a directory where you want the db, storage, and logs
+
+mkdir -p logs
+rm -f logs/manager.log
+
+# Initialize test configuration
+jiggablend manager config enable localauth
+jiggablend manager config set fixed-apikey jk_r0_test_key_123456789012345678901234567890 -f -y
+jiggablend manager config add user test@example.com testpassword --admin -f -y
+
+# Run manager
+jiggablend manager -l logs/manager.log
+EOF
+chmod +x jiggablend-manager.sh
+sudo install -m 0755 jiggablend-manager.sh /usr/local/bin/jiggablend-manager
+rm -f jiggablend-manager.sh
+
+echo "Creating runner wrapper script..."
+cat << 'EOF' > jiggablend-runner.sh
+#!/bin/bash
+
+set -euo pipefail
+
+# Wrapper to run jiggablend runner with test setup
+# Usage: jiggablend-runner [MANAGER_URL] [RUNNER_FLAGS...]
+# Default MANAGER_URL: http://localhost:8080
+# Run this in a directory where you want the logs
+
+MANAGER_URL="http://localhost:8080"
+if [[ $# -gt 0 && "$1" != -* ]]; then
+  MANAGER_URL="$1"
+  shift
+fi
+
+EXTRA_ARGS=("$@")
+
+mkdir -p logs
+rm -f logs/runner.log
+
+# Run runner
+jiggablend runner -l logs/runner.log --api-key=jk_r0_test_key_123456789012345678901234567890 --manager "$MANAGER_URL" "${EXTRA_ARGS[@]}"
+EOF
+chmod +x jiggablend-runner.sh
+sudo install -m 0755 jiggablend-runner.sh /usr/local/bin/jiggablend-runner
+rm -f jiggablend-runner.sh
+
+echo "Cleaning up..."
+rm -f "$ASSET_NAME" checksums.txt jiggablend
+
+echo "Installation complete!"
+echo "Binary: jiggablend"
+echo "Wrappers: jiggablend-manager, jiggablend-runner"
+echo "Run 'jiggablend-manager' to start the manager with test config."
+echo "Run 'jiggablend-runner [url] [runner flags...]' to start the runner."
+echo "Example: jiggablend-runner http://your-manager:8080 --force-cpu-rendering --disable-hiprt"
+echo "Note: Depending on whether you're running the manager or runner, additional dependencies like Blender, ImageMagick, or FFmpeg may be required. See the project README for details."

internal/config/config.go

@@ -21,7 +21,8 @@ const (
 	KeyFixedAPIKey          = "fixed_api_key"
 	KeyRegistrationEnabled  = "registration_enabled"
 	KeyProductionMode       = "production_mode"
-	KeyAllowedOrigins       = "allowed_origins"
+	KeyAllowedOrigins        = "allowed_origins"
+	KeyFramesPerRenderTask  = "frames_per_render_task"
 )
 
 // Config manages application configuration stored in the database
@@ -301,3 +302,12 @@ func (c *Config) AllowedOrigins() string {
 	return c.GetWithDefault(KeyAllowedOrigins, "")
 }
 
+// GetFramesPerRenderTask returns how many frames to include per render task (min 1, default 1).
+func (c *Config) GetFramesPerRenderTask() int {
+	n := c.GetIntWithDefault(KeyFramesPerRenderTask, 1)
+	if n < 1 {
+		return 1
+	}
+	return n
+}
+

internal/database/migrations/000002_add_task_frame_end.down.sql

@@ -0,0 +1,31 @@
+-- SQLite does not support DROP COLUMN directly; recreate table without frame_end
+CREATE TABLE tasks_new (
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	job_id INTEGER NOT NULL,
+	runner_id INTEGER,
+	frame INTEGER NOT NULL,
+	status TEXT NOT NULL DEFAULT 'pending',
+	output_path TEXT,
+	task_type TEXT NOT NULL DEFAULT 'render',
+	current_step TEXT,
+	retry_count INTEGER NOT NULL DEFAULT 0,
+	max_retries INTEGER NOT NULL DEFAULT 3,
+	runner_failure_count INTEGER NOT NULL DEFAULT 0,
+	timeout_seconds INTEGER,
+	condition TEXT,
+	created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+	started_at TIMESTAMP,
+	completed_at TIMESTAMP,
+	error_message TEXT,
+	FOREIGN KEY (job_id) REFERENCES jobs(id),
+	FOREIGN KEY (runner_id) REFERENCES runners(id)
+);
+INSERT INTO tasks_new (id, job_id, runner_id, frame, status, output_path, task_type, current_step, retry_count, max_retries, runner_failure_count, timeout_seconds, condition, created_at, started_at, completed_at, error_message)
+SELECT id, job_id, runner_id, frame, status, output_path, task_type, current_step, retry_count, max_retries, runner_failure_count, timeout_seconds, condition, created_at, started_at, completed_at, error_message FROM tasks;
+DROP TABLE tasks;
+ALTER TABLE tasks_new RENAME TO tasks;
+CREATE INDEX idx_tasks_job_id ON tasks(job_id);
+CREATE INDEX idx_tasks_runner_id ON tasks(runner_id);
+CREATE INDEX idx_tasks_status ON tasks(status);
+CREATE INDEX idx_tasks_job_status ON tasks(job_id, status);
+CREATE INDEX idx_tasks_started_at ON tasks(started_at);

internal/database/migrations/000002_add_task_frame_end.up.sql

@@ -0,0 +1,2 @@
+-- Add frame_end to tasks for range-based render tasks (NULL = single frame, same as frame)
+ALTER TABLE tasks ADD COLUMN frame_end INTEGER;

internal/manager/admin.go

@@ -121,37 +121,6 @@ func (s *Manager) handleDeleteRunnerAPIKey(w http.ResponseWriter, r *http.Reques
 	s.respondJSON(w, http.StatusOK, map[string]string{"message": "API key deleted"})
 }
 
-// handleVerifyRunner manually verifies a runner
-func (s *Manager) handleVerifyRunner(w http.ResponseWriter, r *http.Request) {
-	runnerID, err := parseID(r, "id")
-	if err != nil {
-		s.respondError(w, http.StatusBadRequest, err.Error())
-		return
-	}
-
-	// Check if runner exists
-	var exists bool
-	err = s.db.With(func(conn *sql.DB) error {
-		return conn.QueryRow("SELECT EXISTS(SELECT 1 FROM runners WHERE id = ?)", runnerID).Scan(&exists)
-	})
-	if err != nil || !exists {
-		s.respondError(w, http.StatusNotFound, "Runner not found")
-		return
-	}
-
-	// Mark runner as verified
-	err = s.db.With(func(conn *sql.DB) error {
-		_, err := conn.Exec("UPDATE runners SET verified = 1 WHERE id = ?", runnerID)
-		return err
-	})
-	if err != nil {
-		s.respondError(w, http.StatusInternalServerError, fmt.Sprintf("Failed to verify runner: %v", err))
-		return
-	}
-
-	s.respondJSON(w, http.StatusOK, map[string]string{"message": "Runner verified"})
-}
-
 // handleDeleteRunner removes a runner
 func (s *Manager) handleDeleteRunner(w http.ResponseWriter, r *http.Request) {
 	runnerID, err := parseID(r, "id")
@@ -415,6 +384,12 @@ func (s *Manager) handleSetRegistrationEnabled(w http.ResponseWriter, r *http.Re
 
 // handleSetUserAdminStatus sets a user's admin status (admin only)
 func (s *Manager) handleSetUserAdminStatus(w http.ResponseWriter, r *http.Request) {
+	currentUserID, err := getUserID(r)
+	if err != nil {
+		s.respondError(w, http.StatusUnauthorized, err.Error())
+		return
+	}
+
 	targetUserID, err := parseID(r, "id")
 	if err != nil {
 		s.respondError(w, http.StatusBadRequest, err.Error())
@@ -429,6 +404,12 @@ func (s *Manager) handleSetUserAdminStatus(w http.ResponseWriter, r *http.Reques
 		return
 	}
 
+	// Prevent admins from revoking their own admin status.
+	if targetUserID == currentUserID && !req.IsAdmin {
+		s.respondError(w, http.StatusBadRequest, "You cannot revoke your own admin status")
+		return
+	}
+
 	if err := s.auth.SetUserAdminStatus(targetUserID, req.IsAdmin); err != nil {
 		s.respondError(w, http.StatusBadRequest, err.Error())
 		return

internal/manager/blender.go

@@ -331,8 +331,9 @@ func (s *Manager) GetBlenderArchivePath(version *BlenderVersion) (string, error)
 	// Need to download and decompress
 	log.Printf("Downloading Blender %s from %s", version.Full, version.URL)
 
+	// 60-minute timeout for large Blender tarballs; stream to disk via io.Copy below
 	client := &http.Client{
-		Timeout: 0, // No timeout for large downloads
+		Timeout: 60 * time.Minute,
 	}
 	resp, err := client.Get(version.URL)
 	if err != nil {

internal/manager/manager.go

@@ -59,6 +59,7 @@ type Manager struct {
 	secrets *authpkg.Secrets
 	storage *storage.Storage
 	router  *chi.Mux
+	ui      *uiRenderer
 
 	// WebSocket connections
 	wsUpgrader websocket.Upgrader
@@ -125,10 +126,24 @@ type ClientConnection struct {
 type UploadSession struct {
 	SessionID string
 	UserID    int64
+	TempDir   string
 	Progress  float64
 	Status    string // "uploading", "processing", "extracting_metadata", "creating_context", "completed", "error"
+	Phase     string // "upload", "processing", "ready", "error", "action_required"
 	Message   string
 	CreatedAt time.Time
+	// Result fields set when Status is "completed" (for async processing)
+	ResultContextArchive    string
+	ResultMetadata          interface{} // *types.BlendMetadata when set
+	ResultMainBlendFile     string
+	ResultFileName          string
+	ResultFileSize          int64
+	ResultZipExtracted      bool
+	ResultExtractedFilesCnt int
+	ResultMetadataExtracted bool
+	ResultMetadataError     string   // set when Status is "completed" but metadata extraction failed
+	ErrorMessage            string   // set when Status is "error"
+	ResultBlendFiles        []string // set when Status is "select_blend" (relative paths for user to pick)
 }
 
 // NewManager creates a new manager server
@@ -137,6 +152,10 @@ func NewManager(db *database.DB, cfg *config.Config, auth *authpkg.Auth, storage
 	if err != nil {
 		return nil, fmt.Errorf("failed to initialize secrets: %w", err)
 	}
+	ui, err := newUIRenderer()
+	if err != nil {
+		return nil, fmt.Errorf("failed to initialize UI renderer: %w", err)
+	}
 
 	s := &Manager{
 		db:        db,
@@ -145,6 +164,7 @@ func NewManager(db *database.DB, cfg *config.Config, auth *authpkg.Auth, storage
 		secrets:   secrets,
 		storage:   storage,
 		router:    chi.NewRouter(),
+		ui:        ui,
 		startTime: time.Now(),
 		wsUpgrader: websocket.Upgrader{
 			CheckOrigin:     checkWebSocketOrigin,
@@ -450,6 +470,7 @@ func (w *gzipResponseWriter) WriteHeader(statusCode int) {
 func (s *Manager) setupRoutes() {
 	// Health check endpoint (unauthenticated)
 	s.router.Get("/api/health", s.handleHealthCheck)
+	s.setupUIRoutes()
 
 	// Public routes (with stricter rate limiting for auth endpoints)
 	s.router.Route("/api/auth", func(r chi.Router) {
@@ -477,6 +498,7 @@ func (s *Manager) setupRoutes() {
 		})
 		r.Post("/", s.handleCreateJob)
 		r.Post("/upload", s.handleUploadFileForJobCreation) // Upload before job creation
+		r.Get("/upload/status", s.handleUploadStatus)       // Poll upload processing status (session_id query param)
 		r.Get("/", s.handleListJobs)
 		r.Get("/summary", s.handleListJobsSummary)
 		r.Post("/batch", s.handleBatchGetJobs)
@@ -487,6 +509,7 @@ func (s *Manager) setupRoutes() {
 		r.Get("/{id}/files", s.handleListJobFiles)
 		r.Get("/{id}/files/count", s.handleGetJobFilesCount)
 		r.Get("/{id}/context", s.handleListContextArchive)
+		r.Get("/{id}/files/exr-zip", s.handleDownloadEXRZip)
 		r.Get("/{id}/files/{fileId}/download", s.handleDownloadJobFile)
 		r.Get("/{id}/files/{fileId}/preview-exr", s.handlePreviewEXR)
 		r.Get("/{id}/video", s.handleStreamVideo)
@@ -522,7 +545,6 @@ func (s *Manager) setupRoutes() {
 				r.Delete("/{id}", s.handleDeleteRunnerAPIKey)
 			})
 			r.Get("/", s.handleListRunnersAdmin)
-			r.Post("/{id}/verify", s.handleVerifyRunner)
 			r.Delete("/{id}", s.handleDeleteRunner)
 		})
 		r.Route("/users", func(r chi.Router) {
@@ -555,6 +577,7 @@ func (s *Manager) setupRoutes() {
 				return http.HandlerFunc(s.runnerAuthMiddleware(next.ServeHTTP))
 			})
 			r.Get("/blender/download", s.handleDownloadBlender)
+			r.Get("/jobs/{jobId}/status", s.handleGetJobStatusForRunner)
 			r.Get("/jobs/{jobId}/files", s.handleGetJobFilesForRunner)
 			r.Get("/jobs/{jobId}/metadata", s.handleGetJobMetadataForRunner)
 			r.Get("/files/{jobId}/{fileName}", s.handleDownloadFileForRunner)
@@ -564,8 +587,8 @@ func (s *Manager) setupRoutes() {
 	// Blender versions API (public, for job submission page)
 	s.router.Get("/api/blender/versions", s.handleGetBlenderVersions)
 
-	// Serve static files (embedded React app with SPA fallback)
-	s.router.Handle("/*", web.SPAHandler())
+	// Static assets for server-rendered UI.
+	s.router.Handle("/assets/*", web.StaticHandler())
 }
 
 // ServeHTTP implements http.Handler

internal/manager/renderer.go

@@ -0,0 +1,104 @@
+package api
+
+import (
+	"fmt"
+	"html/template"
+	"net/http"
+	"strings"
+	"time"
+
+	authpkg "jiggablend/internal/auth"
+	"jiggablend/web"
+)
+
+type uiRenderer struct {
+	templates *template.Template
+}
+
+type pageData struct {
+	Title           string
+	CurrentPath     string
+	ContentTemplate string
+	PageScript      string
+	User            *authpkg.Session
+	Error           string
+	Notice          string
+	Data            interface{}
+}
+
+func newUIRenderer() (*uiRenderer, error) {
+	tpl, err := template.New("base").Funcs(template.FuncMap{
+		"formatTime": func(t time.Time) string {
+			if t.IsZero() {
+				return "-"
+			}
+			return t.Local().Format("2006-01-02 15:04:05")
+		},
+		"statusClass": func(status string) string {
+			switch status {
+			case "completed":
+				return "status-completed"
+			case "running":
+				return "status-running"
+			case "failed":
+				return "status-failed"
+			case "cancelled":
+				return "status-cancelled"
+			case "online":
+				return "status-online"
+			case "offline":
+				return "status-offline"
+			case "busy":
+				return "status-busy"
+			default:
+				return "status-pending"
+			}
+		},
+		"progressInt": func(v float64) int {
+			if v < 0 {
+				return 0
+			}
+			if v > 100 {
+				return 100
+			}
+			return int(v)
+		},
+		"derefInt": func(v *int) string {
+			if v == nil {
+				return ""
+			}
+			return fmt.Sprintf("%d", *v)
+		},
+		"derefString": func(v *string) string {
+			if v == nil {
+				return ""
+			}
+			return *v
+		},
+		"hasSuffixFold": func(value, suffix string) bool {
+			return strings.HasSuffix(strings.ToLower(value), strings.ToLower(suffix))
+		},
+	}).ParseFS(
+		web.GetTemplateFS(),
+		"templates/*.html",
+		"templates/partials/*.html",
+	)
+	if err != nil {
+		return nil, fmt.Errorf("parse templates: %w", err)
+	}
+	return &uiRenderer{templates: tpl}, nil
+}
+
+func (r *uiRenderer) render(w http.ResponseWriter, data pageData) {
+	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	if err := r.templates.ExecuteTemplate(w, "base", data); err != nil {
+		http.Error(w, "template render error", http.StatusInternalServerError)
+	}
+}
+
+func (r *uiRenderer) renderTemplate(w http.ResponseWriter, templateName string, data interface{}) {
+	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	if err := r.templates.ExecuteTemplate(w, templateName, data); err != nil {
+		http.Error(w, "template render error", http.StatusInternalServerError)
+	}
+}

internal/manager/renderer_test.go

@@ -0,0 +1,13 @@
+package api
+
+import "testing"
+
+func TestNewUIRendererParsesTemplates(t *testing.T) {
+	renderer, err := newUIRenderer()
+	if err != nil {
+		t.Fatalf("newUIRenderer returned error: %v", err)
+	}
+	if renderer == nil || renderer.templates == nil {
+		t.Fatalf("renderer/templates should not be nil")
+	}
+}

internal/manager/runners.go

@@ -275,7 +275,8 @@ type NextJobTaskInfo struct {
 	TaskID   int64                `json:"task_id"`
 	JobID    int64                `json:"job_id"`
 	JobName  string               `json:"job_name"`
-	Frame    int                  `json:"frame"`
+	Frame    int                  `json:"frame"`     // frame start (inclusive)
+	FrameEnd int                  `json:"frame_end"` // frame end (inclusive); same as Frame for single-frame
 	TaskType string               `json:"task_type"`
 	Metadata *types.BlendMetadata `json:"metadata,omitempty"`
 }
@@ -376,6 +377,7 @@ func (s *Manager) handleNextJob(w http.ResponseWriter, r *http.Request) {
 		TaskID        int64
 		JobID         int64
 		Frame         int
+		FrameEnd      sql.NullInt64
 		TaskType      string
 		JobName       string
 		JobUserID     int64
@@ -385,7 +387,7 @@ func (s *Manager) handleNextJob(w http.ResponseWriter, r *http.Request) {
 
 	err = s.db.With(func(conn *sql.DB) error {
 		rows, err := conn.Query(
-			`SELECT t.id, t.job_id, t.frame, t.task_type, 
+			`SELECT t.id, t.job_id, t.frame, t.frame_end, t.task_type, 
 			        j.name as job_name, j.user_id, j.blend_metadata,
 			        t.condition
 			 FROM tasks t
@@ -403,7 +405,7 @@ func (s *Manager) handleNextJob(w http.ResponseWriter, r *http.Request) {
 		for rows.Next() {
 			var task taskCandidate
 			var condition sql.NullString
-			err := rows.Scan(&task.TaskID, &task.JobID, &task.Frame, &task.TaskType,
+			err := rows.Scan(&task.TaskID, &task.JobID, &task.Frame, &task.FrameEnd, &task.TaskType,
 				&task.JobName, &task.JobUserID, &task.BlendMetadata, &condition)
 			if err != nil {
 				continue
@@ -549,6 +551,11 @@ func (s *Manager) handleNextJob(w http.ResponseWriter, r *http.Request) {
 	// Update job status
 	s.updateJobStatusFromTasks(selectedTask.JobID)
 
+	// Frame end for response: use task range or single frame (NULL frame_end)
+	frameEnd := selectedTask.Frame
+	if selectedTask.FrameEnd.Valid {
+		frameEnd = int(selectedTask.FrameEnd.Int64)
+	}
 	// Build response
 	response := NextJobResponse{
 		JobToken: jobToken,
@@ -558,6 +565,7 @@ func (s *Manager) handleNextJob(w http.ResponseWriter, r *http.Request) {
 			JobID:    selectedTask.JobID,
 			JobName:  selectedTask.JobName,
 			Frame:    selectedTask.Frame,
+			FrameEnd: frameEnd,
 			TaskType: selectedTask.TaskType,
 			Metadata: metadata,
 		},
@@ -1959,6 +1967,12 @@ func (s *Manager) updateJobStatusFromTasks(jobID int64) {
 		return
 	}
 
+	// Cancellation is terminal from the user's perspective.
+	// Do not allow asynchronous task updates to revive cancelled jobs.
+	if currentStatus == string(types.JobStatusCancelled) {
+		return
+	}
+
 	// Count total tasks and completed tasks
 	var totalTasks, completedTasks int
 	err = s.db.With(func(conn *sql.DB) error {

internal/manager/ui.go

@@ -0,0 +1,556 @@
+package api
+
+import (
+	"database/sql"
+	"fmt"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	authpkg "jiggablend/internal/auth"
+
+	"github.com/go-chi/chi/v5"
+)
+
+type uiJobSummary struct {
+	ID           int64
+	Name         string
+	Status       string
+	Progress     float64
+	FrameStart   *int
+	FrameEnd     *int
+	OutputFormat *string
+	CreatedAt    time.Time
+}
+
+type uiTaskSummary struct {
+	ID          int64
+	TaskType    string
+	Status      string
+	Frame       int
+	FrameEnd    *int
+	CurrentStep string
+	RetryCount  int
+	Error       string
+	StartedAt   *time.Time
+	CompletedAt *time.Time
+}
+
+type uiFileSummary struct {
+	ID        int64
+	FileName  string
+	FileType  string
+	FileSize  int64
+	CreatedAt time.Time
+}
+
+func (s *Manager) setupUIRoutes() {
+	s.router.Get("/", s.handleUIRoot)
+	s.router.Get("/login", s.handleUILoginPage)
+	s.router.Post("/logout", s.handleUILogout)
+
+	s.router.Group(func(r chi.Router) {
+		r.Use(func(next http.Handler) http.Handler {
+			return http.HandlerFunc(s.auth.Middleware(next.ServeHTTP))
+		})
+		r.Get("/jobs", s.handleUIJobsPage)
+		r.Get("/jobs/new", s.handleUINewJobPage)
+		r.Get("/jobs/{id}", s.handleUIJobDetailPage)
+
+		r.Get("/ui/fragments/jobs", s.handleUIJobsFragment)
+		r.Get("/ui/fragments/jobs/{id}/tasks", s.handleUIJobTasksFragment)
+		r.Get("/ui/fragments/jobs/{id}/files", s.handleUIJobFilesFragment)
+	})
+
+	s.router.Group(func(r chi.Router) {
+		r.Use(func(next http.Handler) http.Handler {
+			return http.HandlerFunc(s.auth.AdminMiddleware(next.ServeHTTP))
+		})
+		r.Get("/admin", s.handleUIAdminPage)
+		r.Get("/ui/fragments/admin/runners", s.handleUIAdminRunnersFragment)
+		r.Get("/ui/fragments/admin/users", s.handleUIAdminUsersFragment)
+		r.Get("/ui/fragments/admin/apikeys", s.handleUIAdminAPIKeysFragment)
+	})
+}
+
+func (s *Manager) sessionFromRequest(r *http.Request) (*authpkg.Session, bool) {
+	cookie, err := r.Cookie("session_id")
+	if err != nil {
+		return nil, false
+	}
+	return s.auth.GetSession(cookie.Value)
+}
+
+func (s *Manager) handleUIRoot(w http.ResponseWriter, r *http.Request) {
+	if _, ok := s.sessionFromRequest(r); ok {
+		http.Redirect(w, r, "/jobs", http.StatusFound)
+		return
+	}
+	http.Redirect(w, r, "/login", http.StatusFound)
+}
+
+func (s *Manager) handleUILoginPage(w http.ResponseWriter, r *http.Request) {
+	if _, ok := s.sessionFromRequest(r); ok {
+		http.Redirect(w, r, "/jobs", http.StatusFound)
+		return
+	}
+
+	s.ui.render(w, pageData{
+		Title:           "Login",
+		CurrentPath:     "/login",
+		ContentTemplate: "page_login",
+		PageScript:      "/assets/login.js",
+		Data: map[string]interface{}{
+			"google_enabled":  s.auth.IsGoogleOAuthConfigured(),
+			"discord_enabled": s.auth.IsDiscordOAuthConfigured(),
+			"local_enabled":   s.auth.IsLocalLoginEnabled(),
+			"error":           r.URL.Query().Get("error"),
+		},
+	})
+}
+
+func (s *Manager) handleUILogout(w http.ResponseWriter, r *http.Request) {
+	cookie, err := r.Cookie("session_id")
+	if err == nil {
+		s.auth.DeleteSession(cookie.Value)
+	}
+	expired := &http.Cookie{
+		Name:     "session_id",
+		Value:    "",
+		Path:     "/",
+		MaxAge:   -1,
+		HttpOnly: true,
+		SameSite: http.SameSiteLaxMode,
+	}
+	if s.cfg.IsProductionMode() {
+		expired.Secure = true
+	}
+	http.SetCookie(w, expired)
+	http.Redirect(w, r, "/login", http.StatusFound)
+}
+
+func (s *Manager) handleUIJobsPage(w http.ResponseWriter, r *http.Request) {
+	user, _ := s.sessionFromRequest(r)
+	s.ui.render(w, pageData{
+		Title:           "Jobs",
+		CurrentPath:     "/jobs",
+		ContentTemplate: "page_jobs",
+		PageScript:      "/assets/jobs.js",
+		User:            user,
+	})
+}
+
+func (s *Manager) handleUINewJobPage(w http.ResponseWriter, r *http.Request) {
+	user, _ := s.sessionFromRequest(r)
+	s.ui.render(w, pageData{
+		Title:           "New Job",
+		CurrentPath:     "/jobs/new",
+		ContentTemplate: "page_jobs_new",
+		PageScript:      "/assets/job_new.js",
+		User:            user,
+	})
+}
+
+func (s *Manager) handleUIJobDetailPage(w http.ResponseWriter, r *http.Request) {
+	userID, err := getUserID(r)
+	if err != nil {
+		http.Redirect(w, r, "/login", http.StatusFound)
+		return
+	}
+	isAdmin := authpkg.IsAdmin(r.Context())
+	jobID, err := parseID(r, "id")
+	if err != nil {
+		http.NotFound(w, r)
+		return
+	}
+
+	job, err := s.getUIJob(jobID, userID, isAdmin)
+	if err != nil {
+		http.NotFound(w, r)
+		return
+	}
+	user, _ := s.sessionFromRequest(r)
+	s.ui.render(w, pageData{
+		Title:           fmt.Sprintf("Job %d", jobID),
+		CurrentPath:     "/jobs",
+		ContentTemplate: "page_job_show",
+		PageScript:      "/assets/job_show.js",
+		User:            user,
+		Data:            map[string]interface{}{"job": job},
+	})
+}
+
+func (s *Manager) handleUIAdminPage(w http.ResponseWriter, r *http.Request) {
+	user, _ := s.sessionFromRequest(r)
+	regEnabled, _ := s.auth.IsRegistrationEnabled()
+	s.ui.render(w, pageData{
+		Title:           "Admin",
+		CurrentPath:     "/admin",
+		ContentTemplate: "page_admin",
+		PageScript:      "/assets/admin.js",
+		User:            user,
+		Data: map[string]interface{}{
+			"registration_enabled": regEnabled,
+		},
+	})
+}
+
+func (s *Manager) handleUIJobsFragment(w http.ResponseWriter, r *http.Request) {
+	userID, err := getUserID(r)
+	if err != nil {
+		http.Error(w, "unauthorized", http.StatusUnauthorized)
+		return
+	}
+	jobs, err := s.listUIJobSummaries(userID, 50, 0)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	s.ui.renderTemplate(w, "partial_jobs_table", map[string]interface{}{"jobs": jobs})
+}
+
+func (s *Manager) handleUIJobTasksFragment(w http.ResponseWriter, r *http.Request) {
+	userID, err := getUserID(r)
+	if err != nil {
+		http.Error(w, "unauthorized", http.StatusUnauthorized)
+		return
+	}
+	isAdmin := authpkg.IsAdmin(r.Context())
+	jobID, err := parseID(r, "id")
+	if err != nil {
+		http.Error(w, "invalid job id", http.StatusBadRequest)
+		return
+	}
+
+	if _, err := s.getUIJob(jobID, userID, isAdmin); err != nil {
+		http.Error(w, "job not found", http.StatusNotFound)
+		return
+	}
+
+	tasks, err := s.listUITasks(jobID)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	s.ui.renderTemplate(w, "partial_job_tasks", map[string]interface{}{
+		"job_id": jobID,
+		"tasks":  tasks,
+	})
+}
+
+func (s *Manager) handleUIJobFilesFragment(w http.ResponseWriter, r *http.Request) {
+	userID, err := getUserID(r)
+	if err != nil {
+		http.Error(w, "unauthorized", http.StatusUnauthorized)
+		return
+	}
+	isAdmin := authpkg.IsAdmin(r.Context())
+	jobID, err := parseID(r, "id")
+	if err != nil {
+		http.Error(w, "invalid job id", http.StatusBadRequest)
+		return
+	}
+
+	if _, err := s.getUIJob(jobID, userID, isAdmin); err != nil {
+		http.Error(w, "job not found", http.StatusNotFound)
+		return
+	}
+
+	files, err := s.listUIFiles(jobID, 100)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	outputFiles := make([]uiFileSummary, 0, len(files))
+	adminInputFiles := make([]uiFileSummary, 0)
+	for _, file := range files {
+		if strings.EqualFold(file.FileType, "output") {
+			outputFiles = append(outputFiles, file)
+			continue
+		}
+		if isAdmin {
+			adminInputFiles = append(adminInputFiles, file)
+		}
+	}
+
+	s.ui.renderTemplate(w, "partial_job_files", map[string]interface{}{
+		"job_id":            jobID,
+		"files":             outputFiles,
+		"is_admin":          isAdmin,
+		"admin_input_files": adminInputFiles,
+	})
+}
+
+func (s *Manager) handleUIAdminRunnersFragment(w http.ResponseWriter, r *http.Request) {
+	var rows *sql.Rows
+	err := s.db.With(func(conn *sql.DB) error {
+		var qErr error
+		rows, qErr = conn.Query(`SELECT id, name, hostname, status, last_heartbeat, priority, created_at FROM runners ORDER BY created_at DESC`)
+		return qErr
+	})
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	defer rows.Close()
+
+	type runner struct {
+		ID            int64
+		Name          string
+		Hostname      string
+		Status        string
+		LastHeartbeat time.Time
+		Priority      int
+		CreatedAt     time.Time
+	}
+	all := make([]runner, 0)
+	for rows.Next() {
+		var item runner
+		if scanErr := rows.Scan(&item.ID, &item.Name, &item.Hostname, &item.Status, &item.LastHeartbeat, &item.Priority, &item.CreatedAt); scanErr != nil {
+			http.Error(w, scanErr.Error(), http.StatusInternalServerError)
+			return
+		}
+		all = append(all, item)
+	}
+	s.ui.renderTemplate(w, "partial_admin_runners", map[string]interface{}{"runners": all})
+}
+
+func (s *Manager) handleUIAdminUsersFragment(w http.ResponseWriter, r *http.Request) {
+	currentUserID, _ := getUserID(r)
+	firstUserID, _ := s.auth.GetFirstUserID()
+	var rows *sql.Rows
+	err := s.db.With(func(conn *sql.DB) error {
+		var qErr error
+		rows, qErr = conn.Query(`SELECT id, email, name, oauth_provider, is_admin, created_at FROM users ORDER BY created_at DESC`)
+		return qErr
+	})
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	defer rows.Close()
+
+	type user struct {
+		ID            int64
+		Email         string
+		Name          string
+		OAuthProvider string
+		IsAdmin       bool
+		IsFirstUser   bool
+		CreatedAt     time.Time
+	}
+	all := make([]user, 0)
+	for rows.Next() {
+		var item user
+		if scanErr := rows.Scan(&item.ID, &item.Email, &item.Name, &item.OAuthProvider, &item.IsAdmin, &item.CreatedAt); scanErr != nil {
+			http.Error(w, scanErr.Error(), http.StatusInternalServerError)
+			return
+		}
+		item.IsFirstUser = item.ID == firstUserID
+		all = append(all, item)
+	}
+	s.ui.renderTemplate(w, "partial_admin_users", map[string]interface{}{
+		"users":           all,
+		"current_user_id": currentUserID,
+	})
+}
+
+func (s *Manager) handleUIAdminAPIKeysFragment(w http.ResponseWriter, r *http.Request) {
+	keys, err := s.secrets.ListRunnerAPIKeys()
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	type item struct {
+		ID        int64
+		Name      string
+		Scope     string
+		Key       string
+		IsActive  bool
+		CreatedAt time.Time
+	}
+	out := make([]item, 0, len(keys))
+	for _, key := range keys {
+		out = append(out, item{
+			ID:        key.ID,
+			Name:      key.Name,
+			Scope:     key.Scope,
+			Key:       key.Key,
+			IsActive:  key.IsActive,
+			CreatedAt: key.CreatedAt,
+		})
+	}
+	s.ui.renderTemplate(w, "partial_admin_apikeys", map[string]interface{}{"keys": out})
+}
+
+func (s *Manager) listUIJobSummaries(userID int64, limit int, offset int) ([]uiJobSummary, error) {
+	rows := &sql.Rows{}
+	err := s.db.With(func(conn *sql.DB) error {
+		var qErr error
+		rows, qErr = conn.Query(
+			`SELECT id, name, status, progress, frame_start, frame_end, output_format, created_at
+			 FROM jobs WHERE user_id = ? ORDER BY created_at DESC LIMIT ? OFFSET ?`,
+			userID, limit, offset,
+		)
+		return qErr
+	})
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	out := make([]uiJobSummary, 0)
+	for rows.Next() {
+		var item uiJobSummary
+		var frameStart, frameEnd sql.NullInt64
+		var outputFormat sql.NullString
+		if scanErr := rows.Scan(&item.ID, &item.Name, &item.Status, &item.Progress, &frameStart, &frameEnd, &outputFormat, &item.CreatedAt); scanErr != nil {
+			return nil, scanErr
+		}
+		if frameStart.Valid {
+			v := int(frameStart.Int64)
+			item.FrameStart = &v
+		}
+		if frameEnd.Valid {
+			v := int(frameEnd.Int64)
+			item.FrameEnd = &v
+		}
+		if outputFormat.Valid {
+			item.OutputFormat = &outputFormat.String
+		}
+		out = append(out, item)
+	}
+	return out, nil
+}
+
+func (s *Manager) getUIJob(jobID int64, userID int64, isAdmin bool) (uiJobSummary, error) {
+	var item uiJobSummary
+	var frameStart, frameEnd sql.NullInt64
+	var outputFormat sql.NullString
+
+	err := s.db.With(func(conn *sql.DB) error {
+		if isAdmin {
+			return conn.QueryRow(
+				`SELECT id, name, status, progress, frame_start, frame_end, output_format, created_at
+				 FROM jobs WHERE id = ?`,
+				jobID,
+			).Scan(&item.ID, &item.Name, &item.Status, &item.Progress, &frameStart, &frameEnd, &outputFormat, &item.CreatedAt)
+		}
+		return conn.QueryRow(
+			`SELECT id, name, status, progress, frame_start, frame_end, output_format, created_at
+			 FROM jobs WHERE id = ? AND user_id = ?`,
+			jobID, userID,
+		).Scan(&item.ID, &item.Name, &item.Status, &item.Progress, &frameStart, &frameEnd, &outputFormat, &item.CreatedAt)
+	})
+	if err != nil {
+		return uiJobSummary{}, err
+	}
+	if frameStart.Valid {
+		v := int(frameStart.Int64)
+		item.FrameStart = &v
+	}
+	if frameEnd.Valid {
+		v := int(frameEnd.Int64)
+		item.FrameEnd = &v
+	}
+	if outputFormat.Valid {
+		item.OutputFormat = &outputFormat.String
+	}
+	return item, nil
+}
+
+func (s *Manager) listUITasks(jobID int64) ([]uiTaskSummary, error) {
+	var rows *sql.Rows
+	err := s.db.With(func(conn *sql.DB) error {
+		var qErr error
+		rows, qErr = conn.Query(
+			`SELECT id, task_type, status, frame, frame_end, current_step, retry_count, error_message, started_at, completed_at
+			 FROM tasks WHERE job_id = ? ORDER BY id ASC`,
+			jobID,
+		)
+		return qErr
+	})
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	out := make([]uiTaskSummary, 0)
+	for rows.Next() {
+		var item uiTaskSummary
+		var frameEnd sql.NullInt64
+		var currentStep sql.NullString
+		var errMsg sql.NullString
+		var startedAt, completedAt sql.NullTime
+		if scanErr := rows.Scan(
+			&item.ID, &item.TaskType, &item.Status, &item.Frame, &frameEnd,
+			&currentStep, &item.RetryCount, &errMsg, &startedAt, &completedAt,
+		); scanErr != nil {
+			return nil, scanErr
+		}
+		if frameEnd.Valid {
+			v := int(frameEnd.Int64)
+			item.FrameEnd = &v
+		}
+		if currentStep.Valid {
+			item.CurrentStep = currentStep.String
+		}
+		if errMsg.Valid {
+			item.Error = errMsg.String
+		}
+		if startedAt.Valid {
+			item.StartedAt = &startedAt.Time
+		}
+		if completedAt.Valid {
+			item.CompletedAt = &completedAt.Time
+		}
+		out = append(out, item)
+	}
+	return out, nil
+}
+
+func (s *Manager) listUIFiles(jobID int64, limit int) ([]uiFileSummary, error) {
+	var rows *sql.Rows
+	err := s.db.With(func(conn *sql.DB) error {
+		var qErr error
+		rows, qErr = conn.Query(
+			`SELECT id, file_name, file_type, file_size, created_at
+			 FROM job_files WHERE job_id = ? ORDER BY created_at DESC LIMIT ?`,
+			jobID, limit,
+		)
+		return qErr
+	})
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	out := make([]uiFileSummary, 0)
+	for rows.Next() {
+		var item uiFileSummary
+		if scanErr := rows.Scan(&item.ID, &item.FileName, &item.FileType, &item.FileSize, &item.CreatedAt); scanErr != nil {
+			return nil, scanErr
+		}
+		out = append(out, item)
+	}
+	return out, nil
+}
+
+func parseBoolForm(r *http.Request, key string) bool {
+	v := strings.TrimSpace(strings.ToLower(r.FormValue(key)))
+	return v == "1" || v == "true" || v == "on" || v == "yes"
+}
+
+func parseIntQuery(r *http.Request, key string, fallback int) int {
+	raw := strings.TrimSpace(r.URL.Query().Get(key))
+	if raw == "" {
+		return fallback
+	}
+	v, err := strconv.Atoi(raw)
+	if err != nil || v < 0 {
+		return fallback
+	}
+	return v
+}

internal/manager/ui_test.go

@@ -0,0 +1,37 @@
+package api
+
+import (
+	"net/http/httptest"
+	"testing"
+)
+
+func TestParseBoolForm(t *testing.T) {
+	req := httptest.NewRequest("POST", "/?flag=true", nil)
+	req.ParseForm()
+	req.Form.Set("enabled", "true")
+	if !parseBoolForm(req, "enabled") {
+		t.Fatalf("expected true for enabled=true")
+	}
+
+	req.Form.Set("enabled", "no")
+	if parseBoolForm(req, "enabled") {
+		t.Fatalf("expected false for enabled=no")
+	}
+}
+
+func TestParseIntQuery(t *testing.T) {
+	req := httptest.NewRequest("GET", "/?limit=42", nil)
+	if got := parseIntQuery(req, "limit", 10); got != 42 {
+		t.Fatalf("expected 42, got %d", got)
+	}
+
+	req = httptest.NewRequest("GET", "/?limit=-1", nil)
+	if got := parseIntQuery(req, "limit", 10); got != 10 {
+		t.Fatalf("expected fallback 10, got %d", got)
+	}
+
+	req = httptest.NewRequest("GET", "/?limit=abc", nil)
+	if got := parseIntQuery(req, "limit", 10); got != 10 {
+		t.Fatalf("expected fallback 10, got %d", got)
+	}
+}

internal/runner/api/manager.go

@@ -196,7 +196,8 @@ type NextJobTaskInfo struct {
 	TaskID   int64                `json:"task_id"`
 	JobID    int64                `json:"job_id"`
 	JobName  string               `json:"job_name"`
-	Frame    int                  `json:"frame"`
+	Frame    int                  `json:"frame"`     // frame start (inclusive)
+	FrameEnd int                  `json:"frame_end"` // frame end (inclusive); same as Frame for single-frame
 	TaskType string               `json:"task_type"`
 	Metadata *types.BlendMetadata `json:"metadata,omitempty"`
 }
@@ -315,6 +316,28 @@ func (m *ManagerClient) GetJobMetadata(jobID int64) (*types.BlendMetadata, error
 	return &metadata, nil
 }
 
+// GetJobStatus retrieves the current status of a job.
+func (m *ManagerClient) GetJobStatus(jobID int64) (types.JobStatus, error) {
+	path := fmt.Sprintf("/api/runner/jobs/%d/status?runner_id=%d", jobID, m.runnerID)
+	resp, err := m.Request("GET", path, nil)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		body, _ := io.ReadAll(resp.Body)
+		return "", fmt.Errorf("failed to get job status: %s", string(body))
+	}
+
+	var job types.Job
+	if err := json.NewDecoder(resp.Body).Decode(&job); err != nil {
+		return "", err
+	}
+
+	return job.Status, nil
+}
+
 // JobFile represents a file associated with a job.
 type JobFile struct {
 	ID       int64  `json:"id"`
@@ -419,3 +442,32 @@ func (m *ManagerClient) DownloadBlender(version string) (io.ReadCloser, error) {
 
 	return resp.Body, nil
 }
+
+// blenderVersionsResponse is the response from GET /api/blender/versions.
+type blenderVersionsResponse struct {
+	Versions []struct {
+		Full string `json:"full"`
+	} `json:"versions"`
+}
+
+// GetLatestBlenderVersion returns the latest Blender version string (e.g. "4.2.3") from the manager.
+// Uses the flat versions list which is newest-first.
+func (m *ManagerClient) GetLatestBlenderVersion() (string, error) {
+	resp, err := m.Request("GET", "/api/blender/versions", nil)
+	if err != nil {
+		return "", fmt.Errorf("failed to fetch blender versions: %w", err)
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		body, _ := io.ReadAll(resp.Body)
+		return "", fmt.Errorf("blender versions returned status %d: %s", resp.StatusCode, string(body))
+	}
+	var out blenderVersionsResponse
+	if err := json.NewDecoder(resp.Body).Decode(&out); err != nil {
+		return "", fmt.Errorf("failed to decode blender versions: %w", err)
+	}
+	if len(out.Versions) == 0 {
+		return "", fmt.Errorf("no blender versions available")
+	}
+	return out.Versions[0].Full, nil
+}

internal/runner/blender/binary.go

@@ -6,6 +6,7 @@ import (
 	"log"
 	"os"
 	"path/filepath"
+	"strings"
 
 	"jiggablend/internal/runner/api"
 	"jiggablend/internal/runner/workspace"
@@ -85,3 +86,42 @@ func (m *Manager) GetBinaryForJob(version string) (string, error) {
 	return m.GetBinaryPath(version)
 }
 
+// TarballEnv returns a copy of baseEnv with LD_LIBRARY_PATH set so that a
+// tarball Blender installation can find its bundled libs (e.g. lib/python3.x).
+// If blenderBinary is the system "blender" or has no path component, baseEnv is
+// returned unchanged.
+func TarballEnv(blenderBinary string, baseEnv []string) []string {
+	if blenderBinary == "" || blenderBinary == "blender" {
+		return baseEnv
+	}
+	if !strings.Contains(blenderBinary, string(os.PathSeparator)) {
+		return baseEnv
+	}
+	blenderDir := filepath.Dir(blenderBinary)
+	libDir := filepath.Join(blenderDir, "lib")
+	ldLib := libDir
+	for _, e := range baseEnv {
+		if strings.HasPrefix(e, "LD_LIBRARY_PATH=") {
+			existing := strings.TrimPrefix(e, "LD_LIBRARY_PATH=")
+			if existing != "" {
+				ldLib = libDir + ":" + existing
+			}
+			break
+		}
+	}
+	out := make([]string, 0, len(baseEnv)+1)
+	done := false
+	for _, e := range baseEnv {
+		if strings.HasPrefix(e, "LD_LIBRARY_PATH=") {
+			out = append(out, "LD_LIBRARY_PATH="+ldLib)
+			done = true
+			continue
+		}
+		out = append(out, e)
+	}
+	if !done {
+		out = append(out, "LD_LIBRARY_PATH="+ldLib)
+	}
+	return out
+}
+

internal/runner/blender/detect.go

@@ -0,0 +1,45 @@
+// Package blender: GPU backend detection for HIP vs NVIDIA.
+package blender
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+
+	"jiggablend/pkg/scripts"
+)
+
+// DetectGPUBackends runs a minimal Blender script to detect whether HIP (AMD) and/or
+// NVIDIA (CUDA/OptiX) devices are available. Use this to decide whether to force CPU
+// for Blender < 4.x (only force when HIP is present, since HIP has no official support pre-4).
+func DetectGPUBackends(blenderBinary, scriptDir string) (hasHIP, hasNVIDIA bool, err error) {
+	scriptPath := filepath.Join(scriptDir, "detect_gpu_backends.py")
+	if err := os.WriteFile(scriptPath, []byte(scripts.DetectGPUBackends), 0644); err != nil {
+		return false, false, fmt.Errorf("write detection script: %w", err)
+	}
+	defer os.Remove(scriptPath)
+
+	env := TarballEnv(blenderBinary, os.Environ())
+	cmd := exec.Command(blenderBinary, "-b", "--python", scriptPath)
+	cmd.Env = env
+	cmd.Dir = scriptDir
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		return false, false, fmt.Errorf("run blender detection: %w (output: %s)", err, string(out))
+	}
+
+	scanner := bufio.NewScanner(strings.NewReader(string(out)))
+	for scanner.Scan() {
+		line := strings.TrimSpace(scanner.Text())
+		switch line {
+		case "HAS_HIP":
+			hasHIP = true
+		case "HAS_NVIDIA":
+			hasNVIDIA = true
+		}
+	}
+	return hasHIP, hasNVIDIA, scanner.Err()
+}

internal/runner/encoding/encoder.go

@@ -20,10 +20,8 @@ type EncodeConfig struct {
 	StartFrame   int     // Starting frame number
 	FrameRate    float64 // Frame rate
 	WorkDir      string  // Working directory
-	UseAlpha     bool    // Whether to preserve alpha channel
-	TwoPass      bool    // Whether to use 2-pass encoding
-	SourceFormat string  // Source format: "exr" or "png" (defaults to "exr")
-	PreserveHDR  bool    // Whether to preserve HDR range for EXR (uses HLG with bt709 primaries)
+	UseAlpha bool   // Whether to preserve alpha channel
+	TwoPass  bool   // Whether to use 2-pass encoding
 }
 
 // Selector selects the software encoder.

internal/runner/encoding/encoders.go

@@ -1,5 +1,7 @@
 package encoding
 
+// Pipeline: Blender outputs only EXR (linear). Encode is EXR only: linear -> sRGB -> HLG (video), 10-bit, full range.
+
 import (
 	"fmt"
 	"log"
@@ -56,97 +58,34 @@ func (e *SoftwareEncoder) Available() bool {
 }
 
 func (e *SoftwareEncoder) BuildCommand(config *EncodeConfig) *exec.Cmd {
-	// Use HDR pixel formats for EXR, SDR for PNG
-	var pixFmt string
-	var colorPrimaries, colorTrc, colorspace string
-	if config.SourceFormat == "png" {
-		// PNG: SDR format
-		pixFmt = "yuv420p"
-		if config.UseAlpha {
-			pixFmt = "yuva420p"
-		}
-		colorPrimaries = "bt709"
-		colorTrc = "bt709"
-		colorspace = "bt709"
-	} else {
-		// EXR: Use HDR encoding if PreserveHDR is true, otherwise SDR (like PNG)
-		if config.PreserveHDR {
-			// HDR: Use HLG transfer with bt709 primaries to preserve HDR range while matching PNG color
-			pixFmt = "yuv420p10le" // 10-bit to preserve HDR range
-			if config.UseAlpha {
-				pixFmt = "yuva420p10le"
-			}
-			colorPrimaries = "bt709"  // bt709 primaries to match PNG color appearance
-			colorTrc = "arib-std-b67" // HLG transfer function - preserves HDR range, works on SDR displays
-			colorspace = "bt709"      // bt709 colorspace to match PNG
-		} else {
-			// SDR: Treat as SDR (like PNG) - encode as bt709
-			pixFmt = "yuv420p"
-			if config.UseAlpha {
-				pixFmt = "yuva420p"
-			}
-			colorPrimaries = "bt709"
-			colorTrc = "bt709"
-			colorspace = "bt709"
-		}
+	// EXR only: HDR path (HLG, 10-bit, full range)
+	pixFmt := "yuv420p10le"
+	if config.UseAlpha {
+		pixFmt = "yuva420p10le"
 	}
+	colorPrimaries, colorTrc, colorspace, colorRange := "bt709", "arib-std-b67", "bt709", "pc"
 
 	var codecArgs []string
 	switch e.codec {
 	case "libaom-av1":
 		codecArgs = []string{"-crf", strconv.Itoa(CRFAV1), "-b:v", "0", "-tiles", "2x2", "-g", "240"}
 	case "libvpx-vp9":
-		// VP9 supports alpha and HDR, use good quality settings
 		codecArgs = []string{"-crf", strconv.Itoa(CRFVP9), "-b:v", "0", "-row-mt", "1", "-g", "240"}
 	default:
-		// H.264: Use High 10 profile for HDR EXR (10-bit), High profile for SDR
-		if config.SourceFormat != "png" && config.PreserveHDR {
-			codecArgs = []string{"-preset", "veryslow", "-crf", strconv.Itoa(CRFH264), "-profile:v", "high10", "-level", "5.2", "-tune", "film", "-keyint_min", "24", "-g", "240", "-bf", "2", "-refs", "4"}
-		} else {
-			codecArgs = []string{"-preset", "veryslow", "-crf", strconv.Itoa(CRFH264), "-profile:v", "high", "-level", "5.2", "-tune", "film", "-keyint_min", "24", "-g", "240", "-bf", "2", "-refs", "4"}
-		}
+		codecArgs = []string{"-preset", "veryslow", "-crf", strconv.Itoa(CRFH264), "-profile:v", "high10", "-level", "5.2", "-tune", "film", "-keyint_min", "24", "-g", "240", "-bf", "2", "-refs", "4"}
 	}
 
-	args := []string{
-		"-y",
-		"-f", "image2",
-		"-start_number", fmt.Sprintf("%d", config.StartFrame),
-		"-framerate", fmt.Sprintf("%.2f", config.FrameRate),
-		"-i", config.InputPattern,
-		"-c:v", e.codec,
-		"-pix_fmt", pixFmt,
-		"-r", fmt.Sprintf("%.2f", config.FrameRate),
-		"-color_primaries", colorPrimaries,
-		"-color_trc", colorTrc,
-		"-colorspace", colorspace,
-		"-color_range", "tv",
-	}
+	args := []string{"-y", "-f", "image2", "-start_number", fmt.Sprintf("%d", config.StartFrame), "-framerate", fmt.Sprintf("%.2f", config.FrameRate),
+		"-color_trc", "linear", "-color_primaries", "bt709"}
+	args = append(args, "-i", config.InputPattern, "-c:v", e.codec, "-pix_fmt", pixFmt, "-r", fmt.Sprintf("%.2f", config.FrameRate), "-color_primaries", colorPrimaries, "-color_trc", colorTrc, "-colorspace", colorspace, "-color_range", colorRange)
 
-	// Add video filter for EXR: convert linear RGB based on HDR setting
-	// PNG doesn't need any filter as it's already in sRGB
-	if config.SourceFormat != "png" {
-		var vf string
-		if config.PreserveHDR {
-			// HDR: Convert linear RGB -> sRGB -> HLG with bt709 primaries
-			// This preserves HDR range while matching PNG color appearance
-			vf = "format=gbrpf32le,zscale=transferin=8:transfer=13:primariesin=1:primaries=1:matrixin=0:matrix=1:rangein=full:range=full,zscale=transferin=13:transfer=18:primariesin=1:primaries=1:matrixin=1:matrix=1:rangein=full:range=full"
-			if config.UseAlpha {
-				vf += ",format=yuva420p10le"
-			} else {
-				vf += ",format=yuv420p10le"
-			}
-		} else {
-			// SDR: Convert linear RGB (EXR) to sRGB (bt709) - simple conversion like Krita does
-			// zscale: linear (8) -> sRGB (13) with bt709 primaries/matrix
-			vf = "format=gbrpf32le,zscale=transferin=8:transfer=13:primariesin=1:primaries=1:matrixin=0:matrix=1:rangein=full:range=full"
-			if config.UseAlpha {
-				vf += ",format=yuva420p"
-			} else {
-				vf += ",format=yuv420p"
-			}
-		}
-		args = append(args, "-vf", vf)
+	vf := "format=gbrpf32le,zscale=transferin=8:transfer=13:primariesin=1:primaries=1:matrixin=0:matrix=1:rangein=full:range=full,zscale=transferin=13:transfer=18:primariesin=1:primaries=1:matrixin=1:matrix=1:rangein=full:range=full"
+	if config.UseAlpha {
+		vf += ",format=yuva420p10le"
+	} else {
+		vf += ",format=yuv420p10le"
 	}
+	args = append(args, "-vf", vf)
 	args = append(args, codecArgs...)
 
 	if config.TwoPass {
@@ -168,97 +107,33 @@ func (e *SoftwareEncoder) BuildCommand(config *EncodeConfig) *exec.Cmd {
 
 // BuildPass1Command builds the first pass command for 2-pass encoding.
 func (e *SoftwareEncoder) BuildPass1Command(config *EncodeConfig) *exec.Cmd {
-	// Use HDR pixel formats for EXR, SDR for PNG
-	var pixFmt string
-	var colorPrimaries, colorTrc, colorspace string
-	if config.SourceFormat == "png" {
-		// PNG: SDR format
-		pixFmt = "yuv420p"
-		if config.UseAlpha {
-			pixFmt = "yuva420p"
-		}
-		colorPrimaries = "bt709"
-		colorTrc = "bt709"
-		colorspace = "bt709"
-	} else {
-		// EXR: Use HDR encoding if PreserveHDR is true, otherwise SDR (like PNG)
-		if config.PreserveHDR {
-			// HDR: Use HLG transfer with bt709 primaries to preserve HDR range while matching PNG color
-			pixFmt = "yuv420p10le" // 10-bit to preserve HDR range
-			if config.UseAlpha {
-				pixFmt = "yuva420p10le"
-			}
-			colorPrimaries = "bt709"  // bt709 primaries to match PNG color appearance
-			colorTrc = "arib-std-b67" // HLG transfer function - preserves HDR range, works on SDR displays
-			colorspace = "bt709"      // bt709 colorspace to match PNG
-		} else {
-			// SDR: Treat as SDR (like PNG) - encode as bt709
-			pixFmt = "yuv420p"
-			if config.UseAlpha {
-				pixFmt = "yuva420p"
-			}
-			colorPrimaries = "bt709"
-			colorTrc = "bt709"
-			colorspace = "bt709"
-		}
+	pixFmt := "yuv420p10le"
+	if config.UseAlpha {
+		pixFmt = "yuva420p10le"
 	}
+	colorPrimaries, colorTrc, colorspace, colorRange := "bt709", "arib-std-b67", "bt709", "pc"
 
 	var codecArgs []string
 	switch e.codec {
 	case "libaom-av1":
 		codecArgs = []string{"-crf", strconv.Itoa(CRFAV1), "-b:v", "0", "-tiles", "2x2", "-g", "240"}
 	case "libvpx-vp9":
-		// VP9 supports alpha and HDR, use good quality settings
 		codecArgs = []string{"-crf", strconv.Itoa(CRFVP9), "-b:v", "0", "-row-mt", "1", "-g", "240"}
 	default:
-		// H.264: Use High 10 profile for HDR EXR (10-bit), High profile for SDR
-		if config.SourceFormat != "png" && config.PreserveHDR {
-			codecArgs = []string{"-preset", "veryslow", "-crf", strconv.Itoa(CRFH264), "-profile:v", "high10", "-level", "5.2", "-tune", "film", "-keyint_min", "24", "-g", "240", "-bf", "2", "-refs", "4"}
-		} else {
-			codecArgs = []string{"-preset", "veryslow", "-crf", strconv.Itoa(CRFH264), "-profile:v", "high", "-level", "5.2", "-tune", "film", "-keyint_min", "24", "-g", "240", "-bf", "2", "-refs", "4"}
-		}
+		codecArgs = []string{"-preset", "veryslow", "-crf", strconv.Itoa(CRFH264), "-profile:v", "high10", "-level", "5.2", "-tune", "film", "-keyint_min", "24", "-g", "240", "-bf", "2", "-refs", "4"}
 	}
 
-	args := []string{
-		"-y",
-		"-f", "image2",
-		"-start_number", fmt.Sprintf("%d", config.StartFrame),
-		"-framerate", fmt.Sprintf("%.2f", config.FrameRate),
-		"-i", config.InputPattern,
-		"-c:v", e.codec,
-		"-pix_fmt", pixFmt,
-		"-r", fmt.Sprintf("%.2f", config.FrameRate),
-		"-color_primaries", colorPrimaries,
-		"-color_trc", colorTrc,
-		"-colorspace", colorspace,
-		"-color_range", "tv",
-	}
+	args := []string{"-y", "-f", "image2", "-start_number", fmt.Sprintf("%d", config.StartFrame), "-framerate", fmt.Sprintf("%.2f", config.FrameRate),
+		"-color_trc", "linear", "-color_primaries", "bt709"}
+	args = append(args, "-i", config.InputPattern, "-c:v", e.codec, "-pix_fmt", pixFmt, "-r", fmt.Sprintf("%.2f", config.FrameRate), "-color_primaries", colorPrimaries, "-color_trc", colorTrc, "-colorspace", colorspace, "-color_range", colorRange)
 
-	// Add video filter for EXR: convert linear RGB based on HDR setting
-	// PNG doesn't need any filter as it's already in sRGB
-	if config.SourceFormat != "png" {
-		var vf string
-		if config.PreserveHDR {
-			// HDR: Convert linear RGB -> sRGB -> HLG with bt709 primaries
-			// This preserves HDR range while matching PNG color appearance
-			vf = "format=gbrpf32le,zscale=transferin=8:transfer=13:primariesin=1:primaries=1:matrixin=0:matrix=1:rangein=full:range=full,zscale=transferin=13:transfer=18:primariesin=1:primaries=1:matrixin=1:matrix=1:rangein=full:range=full"
-			if config.UseAlpha {
-				vf += ",format=yuva420p10le"
-			} else {
-				vf += ",format=yuv420p10le"
-			}
-		} else {
-			// SDR: Convert linear RGB (EXR) to sRGB (bt709) - simple conversion like Krita does
-			// zscale: linear (8) -> sRGB (13) with bt709 primaries/matrix
-			vf = "format=gbrpf32le,zscale=transferin=8:transfer=13:primariesin=1:primaries=1:matrixin=0:matrix=1:rangein=full:range=full"
-			if config.UseAlpha {
-				vf += ",format=yuva420p"
-			} else {
-				vf += ",format=yuv420p"
-			}
-		}
-		args = append(args, "-vf", vf)
+	vf := "format=gbrpf32le,zscale=transferin=8:transfer=13:primariesin=1:primaries=1:matrixin=0:matrix=1:rangein=full:range=full,zscale=transferin=13:transfer=18:primariesin=1:primaries=1:matrixin=1:matrix=1:rangein=full:range=full"
+	if config.UseAlpha {
+		vf += ",format=yuva420p10le"
+	} else {
+		vf += ",format=yuv420p10le"
 	}
+	args = append(args, "-vf", vf)
 
 	args = append(args, codecArgs...)
 	args = append(args, "-pass", "1", "-f", "null", "/dev/null")

internal/runner/encoding/encoders_test.go

@@ -18,7 +18,6 @@ func TestSoftwareEncoder_BuildCommand_H264_EXR(t *testing.T) {
 		WorkDir:      "/tmp",
 		UseAlpha:     false,
 		TwoPass:      true,
-		SourceFormat: "exr",
 	}
 
 	cmd := encoder.BuildCommand(config)
@@ -37,7 +36,7 @@ func TestSoftwareEncoder_BuildCommand_H264_EXR(t *testing.T) {
 	args := cmd.Args[1:] // Skip "ffmpeg"
 	argsStr := strings.Join(args, " ")
 
-	// Check required arguments
+	// EXR always uses HDR path: 10-bit, HLG, full range
 	checks := []struct {
 		name     string
 		expected string
@@ -46,18 +45,19 @@ func TestSoftwareEncoder_BuildCommand_H264_EXR(t *testing.T) {
 		{"image2 format", "-f image2"},
 		{"start number", "-start_number 1"},
 		{"framerate", "-framerate 24.00"},
+		{"input color tag", "-color_trc linear"},
 		{"input pattern", "-i frame_%04d.exr"},
 		{"codec", "-c:v libx264"},
-		{"pixel format", "-pix_fmt yuv420p"}, // EXR now treated as SDR (like PNG)
+		{"pixel format", "-pix_fmt yuv420p10le"},
 		{"frame rate", "-r 24.00"},
-		{"color primaries", "-color_primaries bt709"}, // EXR now uses bt709 (SDR)
-		{"color trc", "-color_trc bt709"},             // EXR now uses bt709 (SDR)
+		{"color primaries", "-color_primaries bt709"},
+		{"color trc", "-color_trc arib-std-b67"},
 		{"colorspace", "-colorspace bt709"},
-		{"color range", "-color_range tv"},
+		{"color range", "-color_range pc"},
 		{"video filter", "-vf"},
 		{"preset", "-preset veryslow"},
 		{"crf", "-crf 15"},
-		{"profile", "-profile:v high"}, // EXR now uses high profile (SDR)
+		{"profile", "-profile:v high10"},
 		{"pass 2", "-pass 2"},
 		{"output path", "output.mp4"},
 	}
@@ -68,40 +68,15 @@ func TestSoftwareEncoder_BuildCommand_H264_EXR(t *testing.T) {
 		}
 	}
 
-	// Verify filter is present for EXR (linear RGB to sRGB conversion, like Krita does)
+	// EXR: linear -> sRGB -> HLG filter
 	if !strings.Contains(argsStr, "format=gbrpf32le") {
 		t.Error("Expected format conversion filter for EXR source, but not found")
 	}
 	if !strings.Contains(argsStr, "zscale=transferin=8:transfer=13") {
 		t.Error("Expected linear to sRGB conversion for EXR source, but not found")
 	}
-}
-
-func TestSoftwareEncoder_BuildCommand_H264_PNG(t *testing.T) {
-	encoder := &SoftwareEncoder{codec: "libx264"}
-	config := &EncodeConfig{
-		InputPattern: "frame_%04d.png",
-		OutputPath:   "output.mp4",
-		StartFrame:   1,
-		FrameRate:    24.0,
-		WorkDir:      "/tmp",
-		UseAlpha:     false,
-		TwoPass:      true,
-		SourceFormat: "png",
-	}
-
-	cmd := encoder.BuildCommand(config)
-	args := cmd.Args[1:]
-	argsStr := strings.Join(args, " ")
-
-	// PNG should NOT have video filter
-	if strings.Contains(argsStr, "-vf") {
-		t.Error("PNG source should not have video filter, but -vf was found")
-	}
-
-	// Should still have all other required args
-	if !strings.Contains(argsStr, "-c:v libx264") {
-		t.Error("Missing codec argument")
+	if !strings.Contains(argsStr, "transfer=18") {
+		t.Error("Expected sRGB to HLG conversion for EXR HDR, but not found")
 	}
 }
 
@@ -113,18 +88,17 @@ func TestSoftwareEncoder_BuildCommand_AV1_WithAlpha(t *testing.T) {
 		StartFrame:   100,
 		FrameRate:    30.0,
 		WorkDir:      "/tmp",
-		UseAlpha:     true,
-		TwoPass:      true,
-		SourceFormat: "exr",
+		UseAlpha: true,
+		TwoPass:  true,
 	}
 
 	cmd := encoder.BuildCommand(config)
 	args := cmd.Args[1:]
 	argsStr := strings.Join(args, " ")
 
-	// Check alpha-specific settings
-	if !strings.Contains(argsStr, "-pix_fmt yuva420p") {
-		t.Error("Expected yuva420p pixel format for alpha, but not found")
+	// EXR with alpha: 10-bit HDR path
+	if !strings.Contains(argsStr, "-pix_fmt yuva420p10le") {
+		t.Error("Expected yuva420p10le pixel format for EXR alpha, but not found")
 	}
 
 	// Check AV1-specific arguments
@@ -142,9 +116,9 @@ func TestSoftwareEncoder_BuildCommand_AV1_WithAlpha(t *testing.T) {
 		}
 	}
 
-	// Check tonemap filter includes alpha format
-	if !strings.Contains(argsStr, "format=yuva420p") {
-		t.Error("Expected tonemap filter to output yuva420p for alpha, but not found")
+	// Check tonemap filter includes alpha format (10-bit for EXR)
+	if !strings.Contains(argsStr, "format=yuva420p10le") {
+		t.Error("Expected tonemap filter to output yuva420p10le for EXR alpha, but not found")
 	}
 }
 
@@ -156,9 +130,8 @@ func TestSoftwareEncoder_BuildCommand_VP9(t *testing.T) {
 		StartFrame:   1,
 		FrameRate:    24.0,
 		WorkDir:      "/tmp",
-		UseAlpha:     true,
-		TwoPass:      true,
-		SourceFormat: "exr",
+		UseAlpha: true,
+		TwoPass:  true,
 	}
 
 	cmd := encoder.BuildCommand(config)
@@ -191,7 +164,6 @@ func TestSoftwareEncoder_BuildPass1Command(t *testing.T) {
 		WorkDir:      "/tmp",
 		UseAlpha:     false,
 		TwoPass:      true,
-		SourceFormat: "exr",
 	}
 
 	cmd := encoder.BuildPass1Command(config)
@@ -227,7 +199,6 @@ func TestSoftwareEncoder_BuildPass1Command_AV1(t *testing.T) {
 		WorkDir:      "/tmp",
 		UseAlpha:     false,
 		TwoPass:      true,
-		SourceFormat: "exr",
 	}
 
 	cmd := encoder.BuildPass1Command(config)
@@ -273,7 +244,6 @@ func TestSoftwareEncoder_BuildPass1Command_VP9(t *testing.T) {
 		WorkDir:      "/tmp",
 		UseAlpha:     false,
 		TwoPass:      true,
-		SourceFormat: "exr",
 	}
 
 	cmd := encoder.BuildPass1Command(config)
@@ -319,7 +289,6 @@ func TestSoftwareEncoder_BuildCommand_NoTwoPass(t *testing.T) {
 		WorkDir:      "/tmp",
 		UseAlpha:     false,
 		TwoPass:      false,
-		SourceFormat: "exr",
 	}
 
 	cmd := encoder.BuildCommand(config)
@@ -432,28 +401,6 @@ func TestSoftwareEncoder_Available(t *testing.T) {
 	}
 }
 
-func TestEncodeConfig_DefaultSourceFormat(t *testing.T) {
-	config := &EncodeConfig{
-		InputPattern: "frame_%04d.exr",
-		OutputPath:   "output.mp4",
-		StartFrame:   1,
-		FrameRate:    24.0,
-		WorkDir:      "/tmp",
-		UseAlpha:     false,
-		TwoPass:      false,
-		// SourceFormat not set, should default to empty string (treated as exr)
-	}
-
-	encoder := &SoftwareEncoder{codec: "libx264"}
-	cmd := encoder.BuildCommand(config)
-	args := strings.Join(cmd.Args[1:], " ")
-
-	// Should still have tonemap filter when SourceFormat is empty (defaults to exr behavior)
-	if !strings.Contains(args, "-vf") {
-		t.Error("Empty SourceFormat should default to EXR behavior with tonemap filter")
-	}
-}
-
 func TestCommandOrder(t *testing.T) {
 	encoder := &SoftwareEncoder{codec: "libx264"}
 	config := &EncodeConfig{
@@ -464,7 +411,6 @@ func TestCommandOrder(t *testing.T) {
 		WorkDir:      "/tmp",
 		UseAlpha:     false,
 		TwoPass:      true,
-		SourceFormat: "exr",
 	}
 
 	cmd := encoder.BuildCommand(config)
@@ -519,20 +465,18 @@ func TestCommand_ColorspaceMetadata(t *testing.T) {
 		WorkDir:      "/tmp",
 		UseAlpha:     false,
 		TwoPass:      false,
-		SourceFormat: "exr",
-		PreserveHDR:  false, // SDR encoding
 	}
 
 	cmd := encoder.BuildCommand(config)
 	args := cmd.Args[1:]
 	argsStr := strings.Join(args, " ")
 
-	// Verify all SDR colorspace metadata is present for EXR (SDR encoding)
+	// EXR always uses HDR path: bt709 primaries, HLG, full range
 	colorspaceArgs := []string{
-		"-color_primaries bt709", // EXR uses bt709 (SDR)
-		"-color_trc bt709",       // EXR uses bt709 (SDR)
+		"-color_primaries bt709",
+		"-color_trc arib-std-b67",
 		"-colorspace bt709",
-		"-color_range tv",
+		"-color_range pc",
 	}
 
 	for _, arg := range colorspaceArgs {
@@ -541,17 +485,11 @@ func TestCommand_ColorspaceMetadata(t *testing.T) {
 		}
 	}
 
-	// Verify SDR pixel format
-	if !strings.Contains(argsStr, "-pix_fmt yuv420p") {
-		t.Error("SDR encoding should use yuv420p pixel format")
+	if !strings.Contains(argsStr, "-pix_fmt yuv420p10le") {
+		t.Error("EXR encoding should use yuv420p10le pixel format")
 	}
-
-	// Verify H.264 high profile (not high10)
-	if !strings.Contains(argsStr, "-profile:v high") {
-		t.Error("SDR encoding should use high profile")
-	}
-	if strings.Contains(argsStr, "-profile:v high10") {
-		t.Error("SDR encoding should not use high10 profile")
+	if !strings.Contains(argsStr, "-profile:v high10") {
+		t.Error("EXR encoding should use high10 profile")
 	}
 }
 
@@ -565,20 +503,18 @@ func TestCommand_HDR_ColorspaceMetadata(t *testing.T) {
 		WorkDir:      "/tmp",
 		UseAlpha:     false,
 		TwoPass:      false,
-		SourceFormat: "exr",
-		PreserveHDR:  true, // HDR encoding
 	}
 
 	cmd := encoder.BuildCommand(config)
 	args := cmd.Args[1:]
 	argsStr := strings.Join(args, " ")
 
-	// Verify all HDR colorspace metadata is present for EXR (HDR encoding)
+	// Verify all HDR colorspace metadata is present for EXR (full range to match zscale output)
 	colorspaceArgs := []string{
-		"-color_primaries bt709",  // bt709 primaries to match PNG color appearance
-		"-color_trc arib-std-b67", // HLG transfer function for HDR/SDR compatibility
-		"-colorspace bt709",       // bt709 colorspace to match PNG
-		"-color_range tv",
+		"-color_primaries bt709",
+		"-color_trc arib-std-b67",
+		"-colorspace bt709",
+		"-color_range pc",
 	}
 
 	for _, arg := range colorspaceArgs {
@@ -656,7 +592,6 @@ func TestIntegration_Encode_EXR_H264(t *testing.T) {
 		WorkDir:      tmpDir,
 		UseAlpha:     false,
 		TwoPass:      false, // Use single pass for faster testing
-		SourceFormat: "exr",
 	}
 
 	// Build and run command
@@ -687,77 +622,6 @@ func TestIntegration_Encode_EXR_H264(t *testing.T) {
 	}
 }
 
-func TestIntegration_Encode_PNG_H264(t *testing.T) {
-	if testing.Short() {
-		t.Skip("Skipping integration test in short mode")
-	}
-
-	// Check if example file exists
-	exampleDir := filepath.Join("..", "..", "..", "examples")
-	pngFile := filepath.Join(exampleDir, "frame_0800.png")
-	if _, err := os.Stat(pngFile); os.IsNotExist(err) {
-		t.Skipf("Example file not found: %s", pngFile)
-	}
-
-	// Get absolute paths
-	workspaceRoot, err := filepath.Abs(filepath.Join("..", "..", ".."))
-	if err != nil {
-		t.Fatalf("Failed to get workspace root: %v", err)
-	}
-	exampleDirAbs, err := filepath.Abs(exampleDir)
-	if err != nil {
-		t.Fatalf("Failed to get example directory: %v", err)
-	}
-	tmpDir := filepath.Join(workspaceRoot, "tmp")
-	if err := os.MkdirAll(tmpDir, 0755); err != nil {
-		t.Fatalf("Failed to create tmp directory: %v", err)
-	}
-
-	encoder := &SoftwareEncoder{codec: "libx264"}
-	config := &EncodeConfig{
-		InputPattern: filepath.Join(exampleDirAbs, "frame_%04d.png"),
-		OutputPath:   filepath.Join(tmpDir, "test_png_h264.mp4"),
-		StartFrame:   800,
-		FrameRate:    24.0,
-		WorkDir:      tmpDir,
-		UseAlpha:     false,
-		TwoPass:      false, // Use single pass for faster testing
-		SourceFormat: "png",
-	}
-
-	// Build and run command
-	cmd := encoder.BuildCommand(config)
-	if cmd == nil {
-		t.Fatal("BuildCommand returned nil")
-	}
-
-	// Verify no video filter is used for PNG
-	argsStr := strings.Join(cmd.Args, " ")
-	if strings.Contains(argsStr, "-vf") {
-		t.Error("PNG encoding should not use video filter, but -vf was found in command")
-	}
-
-	// Run the command
-	cmdOutput, err := cmd.CombinedOutput()
-	if err != nil {
-		t.Errorf("FFmpeg command failed: %v\nCommand output: %s", err, string(cmdOutput))
-		return
-	}
-
-	// Verify output file was created
-	if _, err := os.Stat(config.OutputPath); os.IsNotExist(err) {
-		t.Errorf("Output file was not created: %s\nCommand output: %s", config.OutputPath, string(cmdOutput))
-	} else {
-		t.Logf("Successfully created output file: %s", config.OutputPath)
-		info, _ := os.Stat(config.OutputPath)
-		if info.Size() == 0 {
-			t.Error("Output file was created but is empty")
-		} else {
-			t.Logf("Output file size: %d bytes", info.Size())
-		}
-	}
-}
-
 func TestIntegration_Encode_EXR_VP9(t *testing.T) {
 	if testing.Short() {
 		t.Skip("Skipping integration test in short mode")
@@ -800,7 +664,6 @@ func TestIntegration_Encode_EXR_VP9(t *testing.T) {
 		WorkDir:      tmpDir,
 		UseAlpha:     false,
 		TwoPass:      false, // Use single pass for faster testing
-		SourceFormat: "exr",
 	}
 
 	// Build and run command
@@ -873,7 +736,6 @@ func TestIntegration_Encode_EXR_AV1(t *testing.T) {
 		WorkDir:      tmpDir,
 		UseAlpha:     false,
 		TwoPass:      false,
-		SourceFormat: "exr",
 	}
 
 	// Build and run command
@@ -940,7 +802,6 @@ func TestIntegration_Encode_EXR_VP9_WithAlpha(t *testing.T) {
 		WorkDir:      tmpDir,
 		UseAlpha:     true,  // Test with alpha
 		TwoPass:      false, // Use single pass for faster testing
-		SourceFormat: "exr",
 	}
 
 	// Build and run command

internal/runner/runner.go

@@ -4,6 +4,7 @@ package runner
 import (
 	"crypto/sha256"
 	"encoding/hex"
+	"errors"
 	"fmt"
 	"log"
 	"net"
@@ -39,10 +40,29 @@ type Runner struct {
 
 	fingerprint   string
 	fingerprintMu sync.RWMutex
+
+	// gpuLockedOut is set when logs indicate a GPU error (e.g. HIP "Illegal address");
+	// when true, the runner forces CPU rendering for all subsequent jobs.
+	gpuLockedOut   bool
+	gpuLockedOutMu sync.RWMutex
+
+	// hasHIP/hasNVIDIA are set at startup by running latest Blender to detect GPU backends.
+	// Used to force CPU only for Blender < 4.x when HIP is present (no official HIP support pre-4).
+	// gpuDetectionFailed is true when detection could not run; we then force CPU for all versions (we could not determine HIP vs NVIDIA).
+	gpuBackendMu       sync.RWMutex
+	hasHIP             bool
+	hasNVIDIA          bool
+	gpuBackendProbed   bool
+	gpuDetectionFailed bool
+
+	// forceCPURendering forces CPU rendering for all jobs regardless of metadata/backend detection.
+	forceCPURendering bool
+	// disableHIPRT disables HIPRT acceleration when configuring Cycles HIP devices.
+	disableHIPRT bool
 }
 
 // New creates a new runner.
-func New(managerURL, name, hostname string) *Runner {
+func New(managerURL, name, hostname string, forceCPURendering, disableHIPRT bool) *Runner {
 	manager := api.NewManagerClient(managerURL)
 
 	r := &Runner{
@@ -52,6 +72,9 @@ func New(managerURL, name, hostname string) *Runner {
 		processes:  executils.NewProcessTracker(),
 		stopChan:   make(chan struct{}),
 		processors: make(map[string]tasks.Processor),
+
+		forceCPURendering: forceCPURendering,
+		disableHIPRT:      disableHIPRT,
 	}
 
 	// Generate fingerprint
@@ -67,10 +90,6 @@ func (r *Runner) CheckRequiredTools() error {
 	}
 	log.Printf("Found zstd for compressed blend file support")
 
-	if err := exec.Command("xvfb-run", "--help").Run(); err != nil {
-		return fmt.Errorf("xvfb-run not found - required for headless Blender rendering. Install with: apt install xvfb")
-	}
-	log.Printf("Found xvfb-run for headless rendering without -b option")
 	return nil
 }
 
@@ -122,6 +141,58 @@ func (r *Runner) Register(apiKey string) (int64, error) {
 	return id, nil
 }
 
+// DetectAndStoreGPUBackends downloads the latest Blender from the manager (if needed),
+// runs a detection script to see if HIP (AMD) and/or NVIDIA devices are available,
+// and stores the result. Call after Register. Used so we only force CPU for Blender < 4.x
+// when the runner has HIP (no official HIP support pre-4); NVIDIA is allowed.
+func (r *Runner) DetectAndStoreGPUBackends() {
+	r.gpuBackendMu.Lock()
+	defer r.gpuBackendMu.Unlock()
+	if r.gpuBackendProbed {
+		return
+	}
+	latestVer, err := r.manager.GetLatestBlenderVersion()
+	if err != nil {
+		log.Printf("GPU backend detection failed (could not get latest Blender version: %v). All jobs will use CPU because we could not determine HIP vs NVIDIA.", err)
+		r.gpuBackendProbed = true
+		r.gpuDetectionFailed = true
+		return
+	}
+	binaryPath, err := r.blender.GetBinaryPath(latestVer)
+	if err != nil {
+		log.Printf("GPU backend detection failed (could not get Blender binary: %v). All jobs will use CPU because we could not determine HIP vs NVIDIA.", err)
+		r.gpuBackendProbed = true
+		r.gpuDetectionFailed = true
+		return
+	}
+	hasHIP, hasNVIDIA, err := blender.DetectGPUBackends(binaryPath, r.workspace.BaseDir())
+	if err != nil {
+		log.Printf("GPU backend detection failed (script error: %v). All jobs will use CPU because we could not determine HIP vs NVIDIA.", err)
+		r.gpuBackendProbed = true
+		r.gpuDetectionFailed = true
+		return
+	}
+	r.hasHIP = hasHIP
+	r.hasNVIDIA = hasNVIDIA
+	r.gpuBackendProbed = true
+	r.gpuDetectionFailed = false
+	log.Printf("GPU backend detection: HIP=%v NVIDIA=%v (Blender < 4.x will force CPU only when HIP is present)", hasHIP, hasNVIDIA)
+}
+
+// HasHIP returns whether the runner detected HIP (AMD) devices. Used to force CPU for Blender < 4.x only when HIP is present.
+func (r *Runner) HasHIP() bool {
+	r.gpuBackendMu.RLock()
+	defer r.gpuBackendMu.RUnlock()
+	return r.hasHIP
+}
+
+// GPUDetectionFailed returns true when startup GPU backend detection could not run or failed. When true, all jobs use CPU because we could not determine HIP vs NVIDIA.
+func (r *Runner) GPUDetectionFailed() bool {
+	r.gpuBackendMu.RLock()
+	defer r.gpuBackendMu.RUnlock()
+	return r.gpuDetectionFailed
+}
+
 // Start starts the job polling loop.
 func (r *Runner) Start(pollInterval time.Duration) {
 	log.Printf("Starting job polling loop (interval: %v)", pollInterval)
@@ -182,6 +253,24 @@ func (r *Runner) Cleanup() {
 	}
 }
 
+func (r *Runner) withJobWorkspace(jobID int64, fn func(workDir string) error) error {
+	workDir, err := r.workspace.CreateJobDir(jobID)
+	if err != nil {
+		return fmt.Errorf("failed to create job workspace: %w", err)
+	}
+
+	defer func() {
+		if cleanupErr := r.workspace.CleanupJobDir(jobID); cleanupErr != nil {
+			log.Printf("Warning: failed to cleanup job workspace for job %d: %v", jobID, cleanupErr)
+		}
+		if cleanupErr := r.workspace.CleanupVideoDir(jobID); cleanupErr != nil {
+			log.Printf("Warning: failed to cleanup encode workspace for job %d: %v", jobID, cleanupErr)
+		}
+	}()
+
+	return fn(workDir)
+}
+
 // executeJob handles a job using per-job WebSocket connection.
 func (r *Runner) executeJob(job *api.NextJobResponse) (err error) {
 	// Recover from panics to prevent runner process crashes during task execution
@@ -192,72 +281,88 @@ func (r *Runner) executeJob(job *api.NextJobResponse) (err error) {
 		}
 	}()
 
-	// Connect to job WebSocket (no runnerID needed - authentication handles it)
-	jobConn := api.NewJobConnection()
-	if err := jobConn.Connect(r.manager.GetBaseURL(), job.JobPath, job.JobToken); err != nil {
-		return fmt.Errorf("failed to connect job WebSocket: %w", err)
-	}
-	defer jobConn.Close()
-
-	log.Printf("Job WebSocket authenticated for task %d", job.Task.TaskID)
-
-	// Create task context
-	workDir := r.workspace.JobDir(job.Task.JobID)
-	ctx := tasks.NewContext(
-		job.Task.TaskID,
-		job.Task.JobID,
-		job.Task.JobName,
-		job.Task.Frame,
-		job.Task.TaskType,
-		workDir,
-		job.JobToken,
-		job.Task.Metadata,
-		r.manager,
-		jobConn,
-		r.workspace,
-		r.blender,
-		r.encoder,
-		r.processes,
-	)
-
-	ctx.Info(fmt.Sprintf("Task assignment received (job: %d, type: %s)",
-		job.Task.JobID, job.Task.TaskType))
-
-	// Get processor for task type
-	processor, ok := r.processors[job.Task.TaskType]
-	if !ok {
-		return fmt.Errorf("unknown task type: %s", job.Task.TaskType)
-	}
-
-	// Process the task
-	var processErr error
-	switch job.Task.TaskType {
-	case "render": // this task has a upload outputs step because the frames are not uploaded by the render task directly we have to do it manually here TODO: maybe we should make it work like the encode task
-		// Download context
-		contextPath := job.JobPath + "/context.tar"
-		if err := r.downloadContext(job.Task.JobID, contextPath, job.JobToken); err != nil {
-			jobConn.Log(job.Task.TaskID, types.LogLevelError, fmt.Sprintf("Failed to download context: %v", err))
-			jobConn.Complete(job.Task.TaskID, false, fmt.Errorf("failed to download context: %v", err))
-			return fmt.Errorf("failed to download context: %w", err)
+	return r.withJobWorkspace(job.Task.JobID, func(workDir string) error {
+		// Connect to job WebSocket (no runnerID needed - authentication handles it)
+		jobConn := api.NewJobConnection()
+		if err := jobConn.Connect(r.manager.GetBaseURL(), job.JobPath, job.JobToken); err != nil {
+			return fmt.Errorf("failed to connect job WebSocket: %w", err)
 		}
-		processErr = processor.Process(ctx)
-		if processErr == nil {
-			processErr = r.uploadOutputs(ctx, job)
+		defer jobConn.Close()
+
+		log.Printf("Job WebSocket authenticated for task %d", job.Task.TaskID)
+
+		// Create task context (frame range: Frame = start, FrameEnd = end; 0 or missing = single frame)
+		frameEnd := job.Task.FrameEnd
+		if frameEnd < job.Task.Frame {
+			frameEnd = job.Task.Frame
 		}
-	case "encode": // this task doesn't have a upload outputs step because the video is already uploaded by the encode task
-		processErr = processor.Process(ctx)
-	default:
-		return fmt.Errorf("unknown task type: %s", job.Task.TaskType)
-	}
+		ctx := tasks.NewContext(
+			job.Task.TaskID,
+			job.Task.JobID,
+			job.Task.JobName,
+			job.Task.Frame,
+			frameEnd,
+			job.Task.TaskType,
+			workDir,
+			job.JobToken,
+			job.Task.Metadata,
+			r.manager,
+			jobConn,
+			r.workspace,
+			r.blender,
+			r.encoder,
+			r.processes,
+			r.IsGPULockedOut(),
+			r.HasHIP(),
+			r.GPUDetectionFailed(),
+			r.forceCPURendering,
+			r.disableHIPRT,
+			func() { r.SetGPULockedOut(true) },
+		)
 
-	if processErr != nil {
-		ctx.Error(fmt.Sprintf("Task failed: %v", processErr))
-		ctx.Complete(false, processErr)
-		return processErr
-	}
+		ctx.Info(fmt.Sprintf("Task assignment received (job: %d, type: %s)",
+			job.Task.JobID, job.Task.TaskType))
 
-	ctx.Complete(true, nil)
-	return nil
+		// Get processor for task type
+		processor, ok := r.processors[job.Task.TaskType]
+		if !ok {
+			return fmt.Errorf("unknown task type: %s", job.Task.TaskType)
+		}
+
+		// Process the task
+		var processErr error
+		switch job.Task.TaskType {
+		case "render": // this task has a upload outputs step because the frames are not uploaded by the render task directly we have to do it manually here TODO: maybe we should make it work like the encode task
+			// Download context
+			contextPath := job.JobPath + "/context.tar"
+			if err := r.downloadContext(job.Task.JobID, contextPath, job.JobToken); err != nil {
+				jobConn.Log(job.Task.TaskID, types.LogLevelError, fmt.Sprintf("Failed to download context: %v", err))
+				jobConn.Complete(job.Task.TaskID, false, fmt.Errorf("failed to download context: %v", err))
+				return fmt.Errorf("failed to download context: %w", err)
+			}
+			processErr = processor.Process(ctx)
+			if processErr == nil {
+				processErr = r.uploadOutputs(ctx, job)
+			}
+		case "encode": // this task doesn't have a upload outputs step because the video is already uploaded by the encode task
+			processErr = processor.Process(ctx)
+		default:
+			return fmt.Errorf("unknown task type: %s", job.Task.TaskType)
+		}
+
+		if processErr != nil {
+			if errors.Is(processErr, tasks.ErrJobCancelled) {
+				ctx.Warn("Stopping task early because the job was cancelled")
+				return nil
+			}
+			ctx.Error(fmt.Sprintf("Task failed: %v", processErr))
+			ctx.Complete(false, processErr)
+			return processErr
+		}
+
+		ctx.Complete(true, nil)
+		return nil
+	})
 }
 
 func (r *Runner) downloadContext(jobID int64, contextPath, jobToken string) error {
@@ -363,3 +468,21 @@ func (r *Runner) GetFingerprint() string {
 func (r *Runner) GetID() int64 {
 	return r.id
 }
+
+// SetGPULockedOut sets whether GPU use is locked out due to a detected GPU error.
+// When true, the runner will force CPU rendering for all jobs.
+func (r *Runner) SetGPULockedOut(locked bool) {
+	r.gpuLockedOutMu.Lock()
+	defer r.gpuLockedOutMu.Unlock()
+	r.gpuLockedOut = locked
+	if locked {
+		log.Printf("GPU lockout enabled: GPU rendering disabled for subsequent jobs (CPU only)")
+	}
+}
+
+// IsGPULockedOut returns whether GPU use is currently locked out.
+func (r *Runner) IsGPULockedOut() bool {
+	r.gpuLockedOutMu.RLock()
+	defer r.gpuLockedOutMu.RUnlock()
+	return r.gpuLockedOut
+}

internal/runner/tasks/encode.go

@@ -12,6 +12,7 @@ import (
 	"regexp"
 	"sort"
 	"strings"
+	"sync"
 
 	"jiggablend/internal/runner/encoding"
 )
@@ -26,6 +27,10 @@ func NewEncodeProcessor() *EncodeProcessor {
 
 // Process executes an encode task.
 func (p *EncodeProcessor) Process(ctx *Context) error {
+	if err := ctx.CheckCancelled(); err != nil {
+		return err
+	}
+
 	ctx.Info(fmt.Sprintf("Starting encode task: job %d", ctx.JobID))
 	log.Printf("Processing encode task %d for job %d", ctx.TaskID, ctx.JobID)
 
@@ -64,23 +69,18 @@ func (p *EncodeProcessor) Process(ctx *Context) error {
 		ctx.Info(fmt.Sprintf("File: %s (type: %s, size: %d)", file.FileName, file.FileType, file.FileSize))
 	}
 
-	// Determine source format based on output format
-	sourceFormat := "exr"
+	// Encode from EXR frames only
 	fileExt := ".exr"
-
-	// Find and deduplicate frame files (EXR or PNG)
 	frameFileSet := make(map[string]bool)
 	var frameFilesList []string
 	for _, file := range files {
 		if file.FileType == "output" && strings.HasSuffix(strings.ToLower(file.FileName), fileExt) {
-			// Deduplicate by filename
 			if !frameFileSet[file.FileName] {
 				frameFileSet[file.FileName] = true
 				frameFilesList = append(frameFilesList, file.FileName)
 			}
 		}
 	}
-
 	if len(frameFilesList) == 0 {
 		// Log why no files matched (deduplicate for error reporting)
 		outputFileSet := make(map[string]bool)
@@ -103,37 +103,61 @@ func (p *EncodeProcessor) Process(ctx *Context) error {
 				}
 			}
 		}
-		ctx.Error(fmt.Sprintf("no %s frame files found for encode: found %d total files, %d unique output files, %d unique %s files (with other types)", strings.ToUpper(fileExt[1:]), len(files), len(outputFiles), len(frameFilesOtherType), strings.ToUpper(fileExt[1:])))
+		ctx.Error(fmt.Sprintf("no EXR frame files found for encode: found %d total files, %d unique output files, %d unique EXR files (with other types)", len(files), len(outputFiles), len(frameFilesOtherType)))
 		if len(outputFiles) > 0 {
 			ctx.Error(fmt.Sprintf("Output files found: %v", outputFiles))
 		}
 		if len(frameFilesOtherType) > 0 {
-			ctx.Error(fmt.Sprintf("%s files with wrong type: %v", strings.ToUpper(fileExt[1:]), frameFilesOtherType))
+			ctx.Error(fmt.Sprintf("EXR files with wrong type: %v", frameFilesOtherType))
 		}
-		err := fmt.Errorf("no %s frame files found for encode", strings.ToUpper(fileExt[1:]))
+		err := fmt.Errorf("no EXR frame files found for encode")
 		return err
 	}
 
-	ctx.Info(fmt.Sprintf("Found %d %s frames for encode", len(frameFilesList), strings.ToUpper(fileExt[1:])))
+	ctx.Info(fmt.Sprintf("Found %d EXR frames for encode", len(frameFilesList)))
 
-	// Download frames
-	ctx.Info(fmt.Sprintf("Downloading %d %s frames for encode...", len(frameFilesList), strings.ToUpper(fileExt[1:])))
+	// Download frames with bounded parallelism (8 concurrent downloads)
+	const downloadWorkers = 8
+	ctx.Info(fmt.Sprintf("Downloading %d EXR frames for encode...", len(frameFilesList)))
+
+	type result struct {
+		path string
+		err  error
+	}
+	results := make([]result, len(frameFilesList))
+	var wg sync.WaitGroup
+	sem := make(chan struct{}, downloadWorkers)
+	for i, fileName := range frameFilesList {
+		wg.Add(1)
+		go func(i int, fileName string) {
+			defer wg.Done()
+			sem <- struct{}{}
+			defer func() { <-sem }()
+			framePath := filepath.Join(workDir, fileName)
+			err := ctx.Manager.DownloadFrame(ctx.JobID, fileName, framePath)
+			if err != nil {
+				ctx.Error(fmt.Sprintf("Failed to download EXR frame %s: %v", fileName, err))
+				log.Printf("Failed to download EXR frame for encode %s: %v", fileName, err)
+				results[i] = result{"", err}
+				return
+			}
+			results[i] = result{framePath, nil}
+		}(i, fileName)
+	}
+	wg.Wait()
 
 	var frameFiles []string
-	for i, fileName := range frameFilesList {
-		ctx.Info(fmt.Sprintf("Downloading frame %d/%d: %s", i+1, len(frameFilesList), fileName))
-		framePath := filepath.Join(workDir, fileName)
-		if err := ctx.Manager.DownloadFrame(ctx.JobID, fileName, framePath); err != nil {
-			ctx.Error(fmt.Sprintf("Failed to download %s frame %s: %v", strings.ToUpper(fileExt[1:]), fileName, err))
-			log.Printf("Failed to download %s frame for encode %s: %v", strings.ToUpper(fileExt[1:]), fileName, err)
-			continue
+	for _, r := range results {
+		if r.err == nil && r.path != "" {
+			frameFiles = append(frameFiles, r.path)
 		}
-		ctx.Info(fmt.Sprintf("Successfully downloaded frame %d/%d: %s", i+1, len(frameFilesList), fileName))
-		frameFiles = append(frameFiles, framePath)
+	}
+	if err := ctx.CheckCancelled(); err != nil {
+		return err
 	}
 
 	if len(frameFiles) == 0 {
-		err := fmt.Errorf("failed to download any %s frames for encode", strings.ToUpper(fileExt[1:]))
+		err := fmt.Errorf("failed to download any EXR frames for encode")
 		ctx.Error(err.Error())
 		return err
 	}
@@ -141,11 +165,9 @@ func (p *EncodeProcessor) Process(ctx *Context) error {
 	sort.Strings(frameFiles)
 	ctx.Info(fmt.Sprintf("Downloaded %d frames", len(frameFiles)))
 
-	// Check if EXR files have alpha channel and HDR content (only for EXR source format)
+	// Check if EXR files have alpha channel (for encode decision)
 	hasAlpha := false
-	hasHDR := false
-	if sourceFormat == "exr" {
-		// Check first frame for alpha channel and HDR using ffprobe
+	{
 		firstFrame := frameFiles[0]
 		hasAlpha = detectAlphaChannel(ctx, firstFrame)
 		if hasAlpha {
@@ -153,45 +175,28 @@ func (p *EncodeProcessor) Process(ctx *Context) error {
 		} else {
 			ctx.Info("No alpha channel detected in EXR files")
 		}
-
-		hasHDR = detectHDR(ctx, firstFrame)
-		if hasHDR {
-			ctx.Info("Detected HDR content in EXR files")
-		} else {
-			ctx.Info("No HDR content detected in EXR files (SDR range)")
-		}
 	}
 
 	// Generate video
-	// Use alpha if:
-	// 1. User explicitly enabled it OR source has alpha channel AND
-	// 2. Codec supports alpha (AV1 or VP9)
-	preserveAlpha := ctx.ShouldPreserveAlpha()
-	useAlpha := (preserveAlpha || hasAlpha) && (outputFormat == "EXR_AV1_MP4" || outputFormat == "EXR_VP9_WEBM")
-	if (preserveAlpha || hasAlpha) && outputFormat == "EXR_264_MP4" {
-		ctx.Warn("Alpha channel requested/detected but H.264 does not support alpha. Consider using EXR_AV1_MP4 or EXR_VP9_WEBM to preserve alpha.")
-	}
-	if preserveAlpha && !hasAlpha {
-		ctx.Warn("Alpha preservation requested but no alpha channel detected in EXR files.")
+	// Use alpha when source EXR has alpha and codec supports it (AV1 or VP9). H.264 does not support alpha.
+	useAlpha := hasAlpha && (outputFormat == "EXR_AV1_MP4" || outputFormat == "EXR_VP9_WEBM")
+	if hasAlpha && outputFormat == "EXR_264_MP4" {
+		ctx.Warn("Alpha channel detected in EXR but H.264 does not support alpha. Use EXR_AV1_MP4 or EXR_VP9_WEBM to preserve alpha in video.")
 	}
 	if useAlpha {
-		if preserveAlpha && hasAlpha {
-			ctx.Info("Alpha preservation enabled: Using alpha channel encoding")
-		} else if hasAlpha {
-			ctx.Info("Alpha channel detected - automatically enabling alpha encoding")
-		}
+		ctx.Info("Alpha channel detected - encoding with alpha (AV1/VP9)")
 	}
 	var outputExt string
 	switch outputFormat {
 	case "EXR_VP9_WEBM":
 		outputExt = "webm"
-		ctx.Info("Encoding WebM video with VP9 codec (with alpha channel and HDR support)...")
+		ctx.Info("Encoding WebM video with VP9 codec (alpha, HDR)...")
 	case "EXR_AV1_MP4":
 		outputExt = "mp4"
-		ctx.Info("Encoding MP4 video with AV1 codec (with alpha channel)...")
+		ctx.Info("Encoding MP4 video with AV1 codec (alpha, HDR)...")
 	default:
 		outputExt = "mp4"
-		ctx.Info("Encoding MP4 video with H.264 codec...")
+		ctx.Info("Encoding MP4 video with H.264 codec (HDR, HLG)...")
 	}
 
 	outputVideo := filepath.Join(workDir, fmt.Sprintf("output_%d.%s", ctx.JobID, outputExt))
@@ -231,11 +236,6 @@ func (p *EncodeProcessor) Process(ctx *Context) error {
 	// Pass 1
 	ctx.Info("Pass 1/2: Analyzing content for optimal encode...")
 	softEncoder := encoder.(*encoding.SoftwareEncoder)
-	// Use HDR if: user explicitly enabled it OR HDR content was detected
-	preserveHDR := (ctx.ShouldPreserveHDR() || hasHDR) && sourceFormat == "exr"
-	if hasHDR && !ctx.ShouldPreserveHDR() {
-		ctx.Info("HDR content detected - automatically enabling HDR preservation")
-	}
 	pass1Cmd := softEncoder.BuildPass1Command(&encoding.EncodeConfig{
 		InputPattern: patternPath,
 		OutputPath:   outputVideo,
@@ -244,8 +244,6 @@ func (p *EncodeProcessor) Process(ctx *Context) error {
 		WorkDir:      workDir,
 		UseAlpha:     useAlpha,
 		TwoPass:      true,
-		SourceFormat: sourceFormat,
-		PreserveHDR:  preserveHDR,
 	})
 	if err := pass1Cmd.Run(); err != nil {
 		ctx.Warn(fmt.Sprintf("Pass 1 completed (warnings expected): %v", err))
@@ -254,15 +252,6 @@ func (p *EncodeProcessor) Process(ctx *Context) error {
 	// Pass 2
 	ctx.Info("Pass 2/2: Encoding with optimal quality...")
 
-	preserveHDR = (ctx.ShouldPreserveHDR() || hasHDR) && sourceFormat == "exr"
-	if preserveHDR {
-		if hasHDR && !ctx.ShouldPreserveHDR() {
-			ctx.Info("HDR preservation enabled (auto-detected): Using HLG transfer with bt709 primaries")
-		} else {
-			ctx.Info("HDR preservation enabled: Using HLG transfer with bt709 primaries")
-		}
-	}
-
 	config := &encoding.EncodeConfig{
 		InputPattern: patternPath,
 		OutputPath:   outputVideo,
@@ -271,8 +260,6 @@ func (p *EncodeProcessor) Process(ctx *Context) error {
 		WorkDir:      workDir,
 		UseAlpha:     useAlpha,
 		TwoPass:      true, // Software encoding always uses 2-pass for quality
-		SourceFormat: sourceFormat,
-		PreserveHDR:  preserveHDR,
 	}
 
 	cmd := encoder.BuildCommand(config)
@@ -294,6 +281,8 @@ func (p *EncodeProcessor) Process(ctx *Context) error {
 	if err := cmd.Start(); err != nil {
 		return fmt.Errorf("failed to start encode command: %w", err)
 	}
+	stopMonitor := ctx.StartCancellationMonitor(cmd, "encode")
+	defer stopMonitor()
 
 	ctx.Processes.Track(ctx.TaskID, cmd)
 	defer ctx.Processes.Untrack(ctx.TaskID)
@@ -329,6 +318,9 @@ func (p *EncodeProcessor) Process(ctx *Context) error {
 	<-stderrDone
 
 	if err != nil {
+		if cancelled, checkErr := ctx.IsJobCancelled(); checkErr == nil && cancelled {
+			return ErrJobCancelled
+		}
 		var errMsg string
 		if exitErr, ok := err.(*exec.ExitError); ok {
 			if exitErr.ExitCode() == 137 {

internal/runner/tasks/processor.go

@@ -2,12 +2,19 @@
 package tasks
 
 import (
+	"errors"
+	"fmt"
 	"jiggablend/internal/runner/api"
 	"jiggablend/internal/runner/blender"
 	"jiggablend/internal/runner/encoding"
 	"jiggablend/internal/runner/workspace"
 	"jiggablend/pkg/executils"
 	"jiggablend/pkg/types"
+	"os/exec"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
 )
 
 // Processor handles a specific task type.
@@ -20,7 +27,8 @@ type Context struct {
 	TaskID   int64
 	JobID    int64
 	JobName  string
-	Frame    int
+	Frame    int // frame start (inclusive); kept for backward compat
+	FrameEnd int // frame end (inclusive); same as Frame for single-frame
 	TaskType string
 	WorkDir  string
 	JobToken string
@@ -32,13 +40,30 @@ type Context struct {
 	Blender   *blender.Manager
 	Encoder   *encoding.Selector
 	Processes *executils.ProcessTracker
+
+	// GPULockedOut is set when the runner has detected a GPU error (e.g. HIP) and disables GPU for all jobs.
+	GPULockedOut bool
+	// HasHIP is true when the runner detected HIP (AMD) devices at startup. Used to force CPU for Blender < 4.x only when HIP is present.
+	HasHIP bool
+	// GPUDetectionFailed is true when startup GPU backend detection could not run; we force CPU for all versions (could not determine HIP vs NVIDIA).
+	GPUDetectionFailed bool
+	// OnGPUError is called when a GPU error line is seen in render logs; typically sets runner GPU lockout.
+	OnGPUError func()
+	// ForceCPURendering is a runner-level override that forces CPU rendering for all jobs.
+	ForceCPURendering bool
+	// DisableHIPRT is a runner-level override that disables HIPRT acceleration in Blender.
+	DisableHIPRT bool
 }
 
-// NewContext creates a new task context.
+// ErrJobCancelled indicates the manager-side job was cancelled during execution.
+var ErrJobCancelled = errors.New("job cancelled")
+
+// NewContext creates a new task context. frameEnd should be >= frame; if 0 or less than frame, it is treated as single-frame (frameEnd = frame).
+// gpuLockedOut is the runner's current GPU lockout state; hasHIP means the runner has HIP (AMD) devices (force CPU for Blender < 4.x only when true); gpuDetectionFailed means detection failed at startup (force CPU for all versions—could not determine HIP vs NVIDIA); onGPUError is called when a GPU error is detected in logs (may be nil).
 func NewContext(
 	taskID, jobID int64,
 	jobName string,
-	frame int,
+	frameStart, frameEnd int,
 	taskType string,
 	workDir string,
 	jobToken string,
@@ -49,22 +74,38 @@ func NewContext(
 	blenderMgr *blender.Manager,
 	encoder *encoding.Selector,
 	processes *executils.ProcessTracker,
+	gpuLockedOut bool,
+	hasHIP bool,
+	gpuDetectionFailed bool,
+	forceCPURendering bool,
+	disableHIPRT bool,
+	onGPUError func(),
 ) *Context {
+	if frameEnd < frameStart {
+		frameEnd = frameStart
+	}
 	return &Context{
-		TaskID:    taskID,
-		JobID:     jobID,
-		JobName:   jobName,
-		Frame:     frame,
-		TaskType:  taskType,
-		WorkDir:   workDir,
-		JobToken:  jobToken,
-		Metadata:  metadata,
-		Manager:   manager,
-		JobConn:   jobConn,
-		Workspace: ws,
-		Blender:   blenderMgr,
-		Encoder:   encoder,
-		Processes: processes,
+		TaskID:             taskID,
+		JobID:              jobID,
+		JobName:            jobName,
+		Frame:              frameStart,
+		FrameEnd:           frameEnd,
+		TaskType:           taskType,
+		WorkDir:            workDir,
+		JobToken:           jobToken,
+		Metadata:           metadata,
+		Manager:            manager,
+		JobConn:            jobConn,
+		Workspace:          ws,
+		Blender:            blenderMgr,
+		Encoder:            encoder,
+		Processes:          processes,
+		GPULockedOut:       gpuLockedOut,
+		HasHIP:             hasHIP,
+		GPUDetectionFailed: gpuDetectionFailed,
+		ForceCPURendering:  forceCPURendering,
+		DisableHIPRT:       disableHIPRT,
+		OnGPUError:         onGPUError,
 	}
 }
 
@@ -145,12 +186,111 @@ func (c *Context) ShouldEnableExecution() bool {
 	return c.Metadata != nil && c.Metadata.EnableExecution != nil && *c.Metadata.EnableExecution
 }
 
-// ShouldPreserveHDR returns whether to preserve HDR range for EXR encoding.
-func (c *Context) ShouldPreserveHDR() bool {
-	return c.Metadata != nil && c.Metadata.PreserveHDR != nil && *c.Metadata.PreserveHDR
+// ShouldForceCPU returns true if GPU should be disabled and CPU rendering forced
+// (runner GPU lockout, GPU detection failed at startup for any version, metadata force_cpu,
+// or Blender < 4.x when the runner has HIP).
+func (c *Context) ShouldForceCPU() bool {
+	if c.ForceCPURendering {
+		return true
+	}
+	if c.GPULockedOut {
+		return true
+	}
+	// Detection failed at startup: we could not determine HIP vs NVIDIA, so force CPU for all versions.
+	if c.GPUDetectionFailed {
+		return true
+	}
+	v := c.GetBlenderVersion()
+	major := parseBlenderMajor(v)
+	isPre4 := v != "" && major >= 0 && major < 4
+	// Blender < 4.x: force CPU when runner has HIP (no official HIP support).
+	if isPre4 && c.HasHIP {
+		return true
+	}
+	if c.Metadata != nil && c.Metadata.RenderSettings.EngineSettings != nil {
+		if v, ok := c.Metadata.RenderSettings.EngineSettings["force_cpu"]; ok {
+			if b, ok := v.(bool); ok && b {
+				return true
+			}
+		}
+	}
+	return false
 }
 
-// ShouldPreserveAlpha returns whether to preserve alpha channel for EXR encoding.
-func (c *Context) ShouldPreserveAlpha() bool {
-	return c.Metadata != nil && c.Metadata.PreserveAlpha != nil && *c.Metadata.PreserveAlpha
+// parseBlenderMajor returns the major version number from a string like "4.2.3" or "3.6".
+// Returns -1 if the version cannot be parsed.
+func parseBlenderMajor(version string) int {
+	version = strings.TrimSpace(version)
+	if version == "" {
+		return -1
+	}
+	parts := strings.SplitN(version, ".", 2)
+	major, err := strconv.Atoi(parts[0])
+	if err != nil {
+		return -1
+	}
+	return major
+}
+
+// IsJobCancelled checks whether the manager marked this job as cancelled.
+func (c *Context) IsJobCancelled() (bool, error) {
+	if c.Manager == nil {
+		return false, nil
+	}
+	status, err := c.Manager.GetJobStatus(c.JobID)
+	if err != nil {
+		return false, err
+	}
+	return status == types.JobStatusCancelled, nil
+}
+
+// CheckCancelled returns ErrJobCancelled if the job was cancelled.
+func (c *Context) CheckCancelled() error {
+	cancelled, err := c.IsJobCancelled()
+	if err != nil {
+		return fmt.Errorf("failed to check job status: %w", err)
+	}
+	if cancelled {
+		return ErrJobCancelled
+	}
+	return nil
+}
+
+// StartCancellationMonitor polls manager status and kills cmd if job is cancelled.
+// Caller must invoke returned stop function when cmd exits.
+func (c *Context) StartCancellationMonitor(cmd *exec.Cmd, taskLabel string) func() {
+	stop := make(chan struct{})
+	var once sync.Once
+
+	go func() {
+		ticker := time.NewTicker(2 * time.Second)
+		defer ticker.Stop()
+
+		for {
+			select {
+			case <-stop:
+				return
+			case <-ticker.C:
+				cancelled, err := c.IsJobCancelled()
+				if err != nil {
+					c.Warn(fmt.Sprintf("Could not check cancellation for %s task: %v", taskLabel, err))
+					continue
+				}
+				if !cancelled {
+					continue
+				}
+				c.Warn(fmt.Sprintf("Job %d was cancelled, stopping %s task early", c.JobID, taskLabel))
+				if cmd != nil && cmd.Process != nil {
+					_ = cmd.Process.Kill()
+				}
+				return
+			}
+		}
+	}()
+
+	return func() {
+		once.Do(func() {
+			close(stop)
+		})
+	}
 }

internal/runner/tasks/render.go

@@ -25,11 +25,47 @@ func NewRenderProcessor() *RenderProcessor {
 	return &RenderProcessor{}
 }
 
+// gpuErrorSubstrings are log line substrings that indicate a GPU backend error (matched case-insensitively); any match triggers full GPU lockout.
+var gpuErrorSubstrings = []string{
+	"illegal address in hip", // HIP (AMD) e.g. "Illegal address in HIP" or "Illegal address in hip"
+	"hiperror",               // hipError* codes
+	"hip error",
+	"cuda error",
+	"cuerror",
+	"optix error",
+	"oneapi error",
+	"opencl error",
+}
+
+// checkGPUErrorLine checks a log line for GPU error indicators and triggers runner GPU lockout if found.
+func (p *RenderProcessor) checkGPUErrorLine(ctx *Context, line string) {
+	lower := strings.ToLower(line)
+	for _, sub := range gpuErrorSubstrings {
+		if strings.Contains(lower, sub) {
+			if ctx.OnGPUError != nil {
+				ctx.OnGPUError()
+			}
+			ctx.Warn(fmt.Sprintf("GPU error detected in log (%q); GPU disabled for subsequent jobs", sub))
+			return
+		}
+	}
+}
+
 // Process executes a render task.
 func (p *RenderProcessor) Process(ctx *Context) error {
-	ctx.Info(fmt.Sprintf("Starting task: job %d, frame %d, format: %s",
-		ctx.JobID, ctx.Frame, ctx.GetOutputFormat()))
-	log.Printf("Processing task %d: job %d, frame %d", ctx.TaskID, ctx.JobID, ctx.Frame)
+	if err := ctx.CheckCancelled(); err != nil {
+		return err
+	}
+
+	if ctx.FrameEnd > ctx.Frame {
+		ctx.Info(fmt.Sprintf("Starting task: job %d, frames %d-%d, format: %s",
+			ctx.JobID, ctx.Frame, ctx.FrameEnd, ctx.GetOutputFormat()))
+		log.Printf("Processing task %d: job %d, frames %d-%d", ctx.TaskID, ctx.JobID, ctx.Frame, ctx.FrameEnd)
+	} else {
+		ctx.Info(fmt.Sprintf("Starting task: job %d, frame %d, format: %s",
+			ctx.JobID, ctx.Frame, ctx.GetOutputFormat()))
+		log.Printf("Processing task %d: job %d, frame %d", ctx.TaskID, ctx.JobID, ctx.Frame)
+	}
 
 	// Find .blend file
 	blendFile, err := workspace.FindFirstBlendFile(ctx.WorkDir)
@@ -64,11 +100,22 @@ func (p *RenderProcessor) Process(ctx *Context) error {
 		return fmt.Errorf("failed to create Blender home directory: %w", err)
 	}
 
-	// Determine render format
-	outputFormat := ctx.GetOutputFormat()
-	renderFormat := outputFormat
-	if outputFormat == "EXR_264_MP4" || outputFormat == "EXR_AV1_MP4" || outputFormat == "EXR_VP9_WEBM" {
-		renderFormat = "EXR" // Use EXR for maximum quality
+	// We always render EXR (linear) for VFX accuracy; job output_format is the deliverable (EXR sequence or video).
+	renderFormat := "EXR"
+
+	if ctx.ShouldForceCPU() {
+		v := ctx.GetBlenderVersion()
+		major := parseBlenderMajor(v)
+		isPre4 := v != "" && major >= 0 && major < 4
+		if ctx.ForceCPURendering {
+			ctx.Info("Runner compatibility flag is enabled: forcing CPU rendering for this job")
+		} else if ctx.GPUDetectionFailed {
+			ctx.Info("GPU backend detection failed at startup—we could not determine whether this machine has HIP (AMD) or NVIDIA GPUs, so rendering will use CPU to avoid compatibility issues")
+		} else if isPre4 && ctx.HasHIP {
+			ctx.Info("Blender < 4.x has no official HIP support: using CPU rendering only")
+		} else {
+			ctx.Info("GPU lockout active: using CPU rendering only")
+		}
 	}
 
 	// Create render script
@@ -77,18 +124,30 @@ func (p *RenderProcessor) Process(ctx *Context) error {
 	}
 
 	// Render
-	ctx.Info(fmt.Sprintf("Starting Blender render for frame %d...", ctx.Frame))
+	if ctx.FrameEnd > ctx.Frame {
+		ctx.Info(fmt.Sprintf("Starting Blender render for frames %d-%d...", ctx.Frame, ctx.FrameEnd))
+	} else {
+		ctx.Info(fmt.Sprintf("Starting Blender render for frame %d...", ctx.Frame))
+	}
 	if err := p.runBlender(ctx, blenderBinary, blendFile, outputDir, renderFormat, blenderHome); err != nil {
+		if errors.Is(err, ErrJobCancelled) {
+			ctx.Warn("Render stopped because job was cancelled")
+			return err
+		}
 		ctx.Error(fmt.Sprintf("Blender render failed: %v", err))
 		return err
 	}
 
-	// Verify output
-	if _, err := p.findOutputFile(ctx, outputDir, renderFormat); err != nil {
+	// Verify output (range or single frame)
+	if err := p.verifyOutputRange(ctx, outputDir, renderFormat); err != nil {
 		ctx.Error(fmt.Sprintf("Output verification failed: %v", err))
 		return err
 	}
-	ctx.Info(fmt.Sprintf("Blender render completed for frame %d", ctx.Frame))
+	if ctx.FrameEnd > ctx.Frame {
+		ctx.Info(fmt.Sprintf("Blender render completed for frames %d-%d", ctx.Frame, ctx.FrameEnd))
+	} else {
+		ctx.Info(fmt.Sprintf("Blender render completed for frame %d", ctx.Frame))
+	}
 
 	return nil
 }
@@ -116,22 +175,31 @@ func (p *RenderProcessor) createRenderScript(ctx *Context, renderFormat string)
 		return errors.New(errMsg)
 	}
 
-	// Write output format
-	outputFormat := ctx.GetOutputFormat()
-	ctx.Info(fmt.Sprintf("Writing output format '%s' to format file", outputFormat))
-	if err := os.WriteFile(formatFilePath, []byte(outputFormat), 0644); err != nil {
+	// Write EXR to format file so Blender script sets OPEN_EXR (job output_format is for downstream deliverable only).
+	ctx.Info("Writing output format 'EXR' to format file")
+	if err := os.WriteFile(formatFilePath, []byte("EXR"), 0644); err != nil {
 		errMsg := fmt.Sprintf("failed to create format file: %v", err)
 		ctx.Error(errMsg)
 		return errors.New(errMsg)
 	}
 
-	// Write render settings if available
+	// Write render settings: merge job metadata with runner force_cpu (GPU lockout)
+	var settingsMap map[string]interface{}
 	if ctx.Metadata != nil && ctx.Metadata.RenderSettings.EngineSettings != nil {
-		settingsJSON, err := json.Marshal(ctx.Metadata.RenderSettings)
+		raw, err := json.Marshal(ctx.Metadata.RenderSettings)
 		if err == nil {
-			if err := os.WriteFile(renderSettingsFilePath, settingsJSON, 0644); err != nil {
-				ctx.Warn(fmt.Sprintf("Failed to write render settings file: %v", err))
-			}
+			_ = json.Unmarshal(raw, &settingsMap)
+		}
+	}
+	if settingsMap == nil {
+		settingsMap = make(map[string]interface{})
+	}
+	settingsMap["force_cpu"] = ctx.ShouldForceCPU()
+	settingsMap["disable_hiprt"] = ctx.DisableHIPRT
+	settingsJSON, err := json.Marshal(settingsMap)
+	if err == nil {
+		if err := os.WriteFile(renderSettingsFilePath, settingsJSON, 0644); err != nil {
+			ctx.Warn(fmt.Sprintf("Failed to write render settings file: %v", err))
 		}
 	}
 
@@ -151,17 +219,19 @@ func (p *RenderProcessor) runBlender(ctx *Context, blenderBinary, blendFile, out
 	outputAbsPattern, _ := filepath.Abs(outputPattern)
 	args = append(args, "-o", outputAbsPattern)
 
-	args = append(args, "-f", fmt.Sprintf("%d", ctx.Frame))
+	// Render single frame or range: -f N for one frame, -s start -e end -a for range
+	if ctx.FrameEnd > ctx.Frame {
+		args = append(args, "-s", fmt.Sprintf("%d", ctx.Frame), "-e", fmt.Sprintf("%d", ctx.FrameEnd), "-a")
+	} else {
+		args = append(args, "-f", fmt.Sprintf("%d", ctx.Frame))
+	}
 
-	// Wrap with xvfb-run
-	xvfbArgs := []string{"-a", "-s", "-screen 0 800x600x24", blenderBinary}
-	xvfbArgs = append(xvfbArgs, args...)
-	cmd := exec.Command("xvfb-run", xvfbArgs...)
+	cmd := exec.Command(blenderBinary, args...)
 	cmd.Dir = ctx.WorkDir
 
-	// Set up environment with custom HOME directory
+	// Set up environment: LD_LIBRARY_PATH for tarball Blender, then custom HOME
 	env := os.Environ()
-	// Remove existing HOME if present and add our custom one
+	env = blender.TarballEnv(blenderBinary, env)
 	newEnv := make([]string, 0, len(env)+1)
 	for _, e := range env {
 		if !strings.HasPrefix(e, "HOME=") {
@@ -185,12 +255,14 @@ func (p *RenderProcessor) runBlender(ctx *Context, blenderBinary, blendFile, out
 	if err := cmd.Start(); err != nil {
 		return fmt.Errorf("failed to start blender: %w", err)
 	}
+	stopMonitor := ctx.StartCancellationMonitor(cmd, "render")
+	defer stopMonitor()
 
 	// Track process
 	ctx.Processes.Track(ctx.TaskID, cmd)
 	defer ctx.Processes.Untrack(ctx.TaskID)
 
-	// Stream stdout
+	// Stream stdout and watch for GPU error lines (lock out all GPU on any backend error)
 	stdoutDone := make(chan bool)
 	go func() {
 		defer close(stdoutDone)
@@ -198,6 +270,7 @@ func (p *RenderProcessor) runBlender(ctx *Context, blenderBinary, blendFile, out
 		for scanner.Scan() {
 			line := scanner.Text()
 			if line != "" {
+				p.checkGPUErrorLine(ctx, line)
 				shouldFilter, logLevel := blender.FilterLog(line)
 				if !shouldFilter {
 					ctx.Log(logLevel, line)
@@ -206,7 +279,7 @@ func (p *RenderProcessor) runBlender(ctx *Context, blenderBinary, blendFile, out
 		}
 	}()
 
-	// Stream stderr
+	// Stream stderr and watch for GPU error lines
 	stderrDone := make(chan bool)
 	go func() {
 		defer close(stderrDone)
@@ -214,6 +287,7 @@ func (p *RenderProcessor) runBlender(ctx *Context, blenderBinary, blendFile, out
 		for scanner.Scan() {
 			line := scanner.Text()
 			if line != "" {
+				p.checkGPUErrorLine(ctx, line)
 				shouldFilter, logLevel := blender.FilterLog(line)
 				if !shouldFilter {
 					if logLevel == types.LogLevelInfo {
@@ -231,6 +305,9 @@ func (p *RenderProcessor) runBlender(ctx *Context, blenderBinary, blendFile, out
 	<-stderrDone
 
 	if err != nil {
+		if cancelled, checkErr := ctx.IsJobCancelled(); checkErr == nil && cancelled {
+			return ErrJobCancelled
+		}
 		if exitErr, ok := err.(*exec.ExitError); ok {
 			if exitErr.ExitCode() == 137 {
 				return errors.New("Blender was killed due to excessive memory usage (OOM)")
@@ -242,60 +319,64 @@ func (p *RenderProcessor) runBlender(ctx *Context, blenderBinary, blendFile, out
 	return nil
 }
 
-func (p *RenderProcessor) findOutputFile(ctx *Context, outputDir, renderFormat string) (string, error) {
+// verifyOutputRange checks that output files exist for the task's frame range (first and last at minimum).
+func (p *RenderProcessor) verifyOutputRange(ctx *Context, outputDir, renderFormat string) error {
 	entries, err := os.ReadDir(outputDir)
 	if err != nil {
-		return "", fmt.Errorf("failed to read output directory: %w", err)
+		return fmt.Errorf("failed to read output directory: %w", err)
 	}
 
 	ctx.Info("Checking output directory for files...")
+	ext := strings.ToLower(renderFormat)
 
-	// Try exact match first
-	expectedFile := filepath.Join(outputDir, fmt.Sprintf("frame_%04d.%s", ctx.Frame, strings.ToLower(renderFormat)))
-	if _, err := os.Stat(expectedFile); err == nil {
-		ctx.Info(fmt.Sprintf("Found output file: %s", filepath.Base(expectedFile)))
-		return expectedFile, nil
+	// Check first and last frame in range (minimum required for range; single frame = one check)
+	framesToCheck := []int{ctx.Frame}
+	if ctx.FrameEnd > ctx.Frame {
+		framesToCheck = append(framesToCheck, ctx.FrameEnd)
 	}
-
-	// Try without zero padding
-	altFile := filepath.Join(outputDir, fmt.Sprintf("frame_%d.%s", ctx.Frame, strings.ToLower(renderFormat)))
-	if _, err := os.Stat(altFile); err == nil {
-		ctx.Info(fmt.Sprintf("Found output file: %s", filepath.Base(altFile)))
-		return altFile, nil
-	}
-
-	// Try just frame number
-	altFile2 := filepath.Join(outputDir, fmt.Sprintf("%04d.%s", ctx.Frame, strings.ToLower(renderFormat)))
-	if _, err := os.Stat(altFile2); err == nil {
-		ctx.Info(fmt.Sprintf("Found output file: %s", filepath.Base(altFile2)))
-		return altFile2, nil
-	}
-
-	// Search through all files
-	for _, entry := range entries {
-		if !entry.IsDir() {
-			fileName := entry.Name()
-			if strings.Contains(fileName, "%04d") || strings.Contains(fileName, "%d") {
-				ctx.Warn(fmt.Sprintf("Skipping file with literal pattern: %s", fileName))
-				continue
-			}
-			frameStr := fmt.Sprintf("%d", ctx.Frame)
-			frameStrPadded := fmt.Sprintf("%04d", ctx.Frame)
-			if strings.Contains(fileName, frameStrPadded) ||
-				(strings.Contains(fileName, frameStr) && strings.HasSuffix(strings.ToLower(fileName), strings.ToLower(renderFormat))) {
-				outputFile := filepath.Join(outputDir, fileName)
-				ctx.Info(fmt.Sprintf("Found output file: %s", fileName))
-				return outputFile, nil
+	for _, frame := range framesToCheck {
+		found := false
+		// Try frame_0001.ext, frame_1.ext, 0001.ext
+		for _, name := range []string{
+			fmt.Sprintf("frame_%04d.%s", frame, ext),
+			fmt.Sprintf("frame_%d.%s", frame, ext),
+			fmt.Sprintf("%04d.%s", frame, ext),
+		} {
+			if _, err := os.Stat(filepath.Join(outputDir, name)); err == nil {
+				found = true
+				ctx.Info(fmt.Sprintf("Found output file: %s", name))
+				break
 			}
 		}
-	}
-
-	// Not found
-	fileList := []string{}
-	for _, entry := range entries {
-		if !entry.IsDir() {
-			fileList = append(fileList, entry.Name())
+		if !found {
+			// Search entries for this frame number
+			frameStr := fmt.Sprintf("%d", frame)
+			frameStrPadded := fmt.Sprintf("%04d", frame)
+			for _, entry := range entries {
+				if entry.IsDir() {
+					continue
+				}
+				fileName := entry.Name()
+				if strings.Contains(fileName, "%04d") || strings.Contains(fileName, "%d") {
+					continue
+				}
+				if (strings.Contains(fileName, frameStrPadded) ||
+					strings.Contains(fileName, frameStr)) && strings.HasSuffix(strings.ToLower(fileName), ext) {
+					found = true
+					ctx.Info(fmt.Sprintf("Found output file: %s", fileName))
+					break
+				}
+			}
+		}
+		if !found {
+			fileList := []string{}
+			for _, e := range entries {
+				if !e.IsDir() {
+					fileList = append(fileList, e.Name())
+				}
+			}
+			return fmt.Errorf("output file for frame %d not found; files in output directory: %v", frame, fileList)
 		}
 	}
-	return "", fmt.Errorf("output file not found: %s\nFiles in output directory: %v", expectedFile, fileList)
+	return nil
 }

internal/storage/storage.go

@@ -60,7 +60,7 @@ func (s *Storage) TempDir(pattern string) (string, error) {
 	if err := os.MkdirAll(s.tempPath(), 0755); err != nil {
 		return "", fmt.Errorf("failed to create temp directory: %w", err)
 	}
-	
+
 	// Create temp directory under storage base path
 	return os.MkdirTemp(s.tempPath(), pattern)
 }
@@ -166,12 +166,12 @@ func (s *Storage) GetFileSize(filePath string) (int64, error) {
 // Returns a list of all extracted file paths
 func (s *Storage) ExtractZip(zipPath, destDir string) ([]string, error) {
 	log.Printf("Extracting ZIP archive: %s -> %s", zipPath, destDir)
-	
+
 	// Ensure destination directory exists
 	if err := os.MkdirAll(destDir, 0755); err != nil {
 		return nil, fmt.Errorf("failed to create destination directory: %w", err)
 	}
-	
+
 	r, err := zip.OpenReader(zipPath)
 	if err != nil {
 		return nil, fmt.Errorf("failed to open ZIP file: %w", err)
@@ -187,7 +187,7 @@ func (s *Storage) ExtractZip(zipPath, destDir string) ([]string, error) {
 	for _, f := range r.File {
 		// Sanitize file path to prevent directory traversal
 		destPath := filepath.Join(destDir, f.Name)
-		
+
 		cleanDestPath := filepath.Clean(destPath)
 		cleanDestDir := filepath.Clean(destDir)
 		if !strings.HasPrefix(cleanDestPath, cleanDestDir+string(os.PathSeparator)) && cleanDestPath != cleanDestDir {
@@ -520,7 +520,7 @@ func (s *Storage) CreateJobContextFromDir(sourceDir string, jobID int64, exclude
 		if commonPrefix != "" && strings.HasPrefix(tarPath, commonPrefix) {
 			tarPath = strings.TrimPrefix(tarPath, commonPrefix)
 		}
-		
+
 		// Check if it's a .blend file at root (no path separators after prefix stripping)
 		if strings.HasSuffix(strings.ToLower(tarPath), ".blend") {
 			// Check if it's at root level (no directory separators)
@@ -566,7 +566,7 @@ func (s *Storage) CreateJobContextFromDir(sourceDir string, jobID int64, exclude
 			// Get relative path and strip common prefix if present
 			relPath := relPaths[i]
 			tarPath := filepath.ToSlash(relPath)
-			
+
 			// Strip common prefix if found
 			if commonPrefix != "" && strings.HasPrefix(tarPath, commonPrefix) {
 				tarPath = strings.TrimPrefix(tarPath, commonPrefix)
@@ -608,3 +608,129 @@ func (s *Storage) CreateJobContextFromDir(sourceDir string, jobID int64, exclude
 	return contextPath, nil
 }
 
+// CreateContextArchiveFromDirToPath creates a context archive from files in sourceDir at destPath.
+// This is used for pre-job upload sessions where the archive is staged before a job ID exists.
+func (s *Storage) CreateContextArchiveFromDirToPath(sourceDir, destPath string, excludeFiles ...string) (string, error) {
+	excludeSet := make(map[string]bool)
+	for _, excludeFile := range excludeFiles {
+		excludePath := filepath.Clean(excludeFile)
+		excludeSet[excludePath] = true
+		excludeSet[filepath.ToSlash(excludePath)] = true
+	}
+
+	var filesToInclude []string
+	err := filepath.Walk(sourceDir, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if info.IsDir() {
+			return nil
+		}
+		if isBlenderSaveFile(info.Name()) {
+			return nil
+		}
+
+		relPath, err := filepath.Rel(sourceDir, path)
+		if err != nil {
+			return err
+		}
+		cleanRelPath := filepath.Clean(relPath)
+		if strings.HasPrefix(cleanRelPath, "..") {
+			return fmt.Errorf("invalid file path: %s", relPath)
+		}
+		if excludeSet[cleanRelPath] || excludeSet[filepath.ToSlash(cleanRelPath)] {
+			return nil
+		}
+
+		filesToInclude = append(filesToInclude, path)
+		return nil
+	})
+	if err != nil {
+		return "", fmt.Errorf("failed to walk source directory: %w", err)
+	}
+	if len(filesToInclude) == 0 {
+		return "", fmt.Errorf("no files found to include in context archive")
+	}
+
+	relPaths := make([]string, 0, len(filesToInclude))
+	for _, filePath := range filesToInclude {
+		relPath, err := filepath.Rel(sourceDir, filePath)
+		if err != nil {
+			return "", fmt.Errorf("failed to get relative path: %w", err)
+		}
+		relPaths = append(relPaths, relPath)
+	}
+
+	commonPrefix := findCommonPrefix(relPaths)
+	blendFilesAtRoot := 0
+	for _, relPath := range relPaths {
+		tarPath := filepath.ToSlash(relPath)
+		if commonPrefix != "" && strings.HasPrefix(tarPath, commonPrefix) {
+			tarPath = strings.TrimPrefix(tarPath, commonPrefix)
+		}
+		if strings.HasSuffix(strings.ToLower(tarPath), ".blend") && !strings.Contains(tarPath, "/") {
+			blendFilesAtRoot++
+		}
+	}
+	if blendFilesAtRoot == 0 {
+		return "", fmt.Errorf("no .blend file found at root level in context archive - .blend files must be at the root level of the uploaded archive, not in subdirectories")
+	}
+	if blendFilesAtRoot > 1 {
+		return "", fmt.Errorf("multiple .blend files found at root level in context archive (found %d, expected 1)", blendFilesAtRoot)
+	}
+
+	contextFile, err := os.Create(destPath)
+	if err != nil {
+		return "", fmt.Errorf("failed to create context file: %w", err)
+	}
+	defer contextFile.Close()
+
+	tarWriter := tar.NewWriter(contextFile)
+	defer tarWriter.Close()
+	copyBuf := make([]byte, 32*1024)
+
+	for i, filePath := range filesToInclude {
+		file, err := os.Open(filePath)
+		if err != nil {
+			return "", fmt.Errorf("failed to open file: %w", err)
+		}
+
+		info, err := file.Stat()
+		if err != nil {
+			file.Close()
+			return "", fmt.Errorf("failed to stat file: %w", err)
+		}
+
+		tarPath := filepath.ToSlash(relPaths[i])
+		if commonPrefix != "" && strings.HasPrefix(tarPath, commonPrefix) {
+			tarPath = strings.TrimPrefix(tarPath, commonPrefix)
+		}
+
+		header, err := tar.FileInfoHeader(info, "")
+		if err != nil {
+			file.Close()
+			return "", fmt.Errorf("failed to create tar header: %w", err)
+		}
+		header.Name = tarPath
+
+		if err := tarWriter.WriteHeader(header); err != nil {
+			file.Close()
+			return "", fmt.Errorf("failed to write tar header: %w", err)
+		}
+
+		if _, err := io.CopyBuffer(tarWriter, file, copyBuf); err != nil {
+			file.Close()
+			return "", fmt.Errorf("failed to write file to tar: %w", err)
+		}
+		file.Close()
+	}
+
+	if err := tarWriter.Close(); err != nil {
+		return "", fmt.Errorf("failed to close tar writer: %w", err)
+	}
+	if err := contextFile.Close(); err != nil {
+		return "", fmt.Errorf("failed to close context file: %w", err)
+	}
+
+	return destPath, nil
+}

pkg/executils/exec.go

@@ -2,10 +2,13 @@ package executils
 
 import (
 	"bufio"
+	"context"
 	"errors"
 	"fmt"
+	"io"
 	"os"
 	"os/exec"
+	"strings"
 	"sync"
 	"time"
 
@@ -107,6 +110,78 @@ type CommandResult struct {
 	ExitCode int
 }
 
+// RunCommandWithTimeout is like RunCommand but kills the process after timeout.
+// A zero timeout means no timeout.
+func RunCommandWithTimeout(
+	timeout time.Duration,
+	cmdPath string,
+	args []string,
+	dir string,
+	env []string,
+	taskID int64,
+	tracker *ProcessTracker,
+) (*CommandResult, error) {
+	if timeout <= 0 {
+		return RunCommand(cmdPath, args, dir, env, taskID, tracker)
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+	cmd := exec.CommandContext(ctx, cmdPath, args...)
+	cmd.Dir = dir
+	if env != nil {
+		cmd.Env = env
+	}
+	stdoutPipe, err := cmd.StdoutPipe()
+	if err != nil {
+		return nil, fmt.Errorf("failed to create stdout pipe: %w", err)
+	}
+	stderrPipe, err := cmd.StderrPipe()
+	if err != nil {
+		return nil, fmt.Errorf("failed to create stderr pipe: %w", err)
+	}
+	if err := cmd.Start(); err != nil {
+		return nil, fmt.Errorf("failed to start command: %w", err)
+	}
+	if tracker != nil {
+		tracker.Track(taskID, cmd)
+		defer tracker.Untrack(taskID)
+	}
+	var stdoutBuf, stderrBuf []byte
+	var stdoutErr, stderrErr error
+	var wg sync.WaitGroup
+	wg.Add(2)
+	go func() {
+		defer wg.Done()
+		stdoutBuf, stdoutErr = readAll(stdoutPipe)
+	}()
+	go func() {
+		defer wg.Done()
+		stderrBuf, stderrErr = readAll(stderrPipe)
+	}()
+	waitErr := cmd.Wait()
+	wg.Wait()
+	if stdoutErr != nil && !isBenignPipeReadError(stdoutErr) {
+		return nil, fmt.Errorf("failed to read stdout: %w", stdoutErr)
+	}
+	if stderrErr != nil && !isBenignPipeReadError(stderrErr) {
+		return nil, fmt.Errorf("failed to read stderr: %w", stderrErr)
+	}
+	result := &CommandResult{Stdout: string(stdoutBuf), Stderr: string(stderrBuf)}
+	if waitErr != nil {
+		if exitErr, ok := waitErr.(*exec.ExitError); ok {
+			result.ExitCode = exitErr.ExitCode()
+		} else {
+			result.ExitCode = -1
+		}
+		if ctx.Err() == context.DeadlineExceeded {
+			return result, fmt.Errorf("command timed out after %v: %w", timeout, waitErr)
+		}
+		return result, waitErr
+	}
+	result.ExitCode = 0
+	return result, nil
+}
+
 // RunCommand executes a command and returns the output
 // If tracker is provided, the process will be registered for tracking
 // This is useful for commands where you need to capture output (like metadata extraction)
@@ -164,10 +239,10 @@ func RunCommand(
 	wg.Wait()
 
 	// Check for read errors
-	if stdoutErr != nil {
+	if stdoutErr != nil && !isBenignPipeReadError(stdoutErr) {
 		return nil, fmt.Errorf("failed to read stdout: %w", stdoutErr)
 	}
-	if stderrErr != nil {
+	if stderrErr != nil && !isBenignPipeReadError(stderrErr) {
 		return nil, fmt.Errorf("failed to read stderr: %w", stderrErr)
 	}
 
@@ -208,6 +283,18 @@ func readAll(r interface{ Read([]byte) (int, error) }) ([]byte, error) {
 	return buf, nil
 }
 
+// isBenignPipeReadError treats EOF-like pipe close races as non-fatal.
+func isBenignPipeReadError(err error) bool {
+	if err == nil {
+		return false
+	}
+	if errors.Is(err, io.EOF) || errors.Is(err, os.ErrClosed) || errors.Is(err, io.ErrClosedPipe) {
+		return true
+	}
+	// Some platforms return wrapped messages that don't map cleanly to sentinel errors.
+	return strings.Contains(strings.ToLower(err.Error()), "file already closed")
+}
+
 // LogSender is a function type for sending logs
 type LogSender func(taskID int, level types.LogLevel, message string, stepName string)
 

pkg/executils/exec_test.go

@@ -0,0 +1,32 @@
+package executils
+
+import (
+	"errors"
+	"io"
+	"os"
+	"testing"
+)
+
+func TestIsBenignPipeReadError(t *testing.T) {
+	tests := []struct {
+		name string
+		err  error
+		want bool
+	}{
+		{name: "nil", err: nil, want: false},
+		{name: "eof", err: io.EOF, want: true},
+		{name: "closed", err: os.ErrClosed, want: true},
+		{name: "closed pipe", err: io.ErrClosedPipe, want: true},
+		{name: "wrapped closed", err: errors.New("read |0: file already closed"), want: true},
+		{name: "other", err: errors.New("permission denied"), want: false},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			got := isBenignPipeReadError(tc.err)
+			if got != tc.want {
+				t.Fatalf("got %v, want %v (err=%v)", got, tc.want, tc.err)
+			}
+		})
+	}
+}

pkg/scripts/scripts.go

@@ -11,3 +11,6 @@ var UnhideObjects string
 //go:embed scripts/render_blender.py.template
 var RenderBlenderTemplate string
 
+//go:embed scripts/detect_gpu_backends.py
+var DetectGPUBackends string
+

pkg/scripts/scripts/detect_gpu_backends.py

@@ -0,0 +1,39 @@
+# Minimal script to detect HIP (AMD) and NVIDIA (CUDA/OptiX) backends for Cycles.
+# Run with: blender -b --python detect_gpu_backends.py
+# Prints HAS_HIP and/or HAS_NVIDIA to stdout, one per line.
+import sys
+
+def main():
+    try:
+        prefs = bpy.context.preferences
+        if not hasattr(prefs, 'addons') or 'cycles' not in prefs.addons:
+            return
+        cprefs = prefs.addons['cycles'].preferences
+        has_hip = False
+        has_nvidia = False
+        for device_type in ('HIP', 'CUDA', 'OPTIX'):
+            try:
+                cprefs.compute_device_type = device_type
+                cprefs.refresh_devices()
+                devs = []
+                if hasattr(cprefs, 'get_devices'):
+                    devs = cprefs.get_devices()
+                elif hasattr(cprefs, 'devices') and cprefs.devices:
+                    devs = list(cprefs.devices) if hasattr(cprefs.devices, '__iter__') else [cprefs.devices]
+                if devs:
+                    if device_type == 'HIP':
+                        has_hip = True
+                    if device_type in ('CUDA', 'OPTIX'):
+                        has_nvidia = True
+            except Exception:
+                pass
+        if has_hip:
+            print('HAS_HIP', flush=True)
+        if has_nvidia:
+            print('HAS_NVIDIA', flush=True)
+    except Exception as e:
+        print('ERROR', str(e), file=sys.stderr, flush=True)
+        sys.exit(1)
+
+import bpy
+main()

pkg/scripts/scripts/render_blender.py.template

@@ -95,31 +95,20 @@ if current_device:
 print(f"Blend file output format: {current_output_format}")
 
 # Override output format if specified
-# The format file always takes precedence (it's written specifically for this job)
+# Render output is EXR only and must remain linear for the encode pipeline (linear -> sRGB -> HLG).
 if output_format_override:
-    print(f"Overriding output format from '{current_output_format}' to '{output_format_override}'")
-    # Map common format names to Blender's format constants
-    # For video formats, we render as appropriate frame format first
-    format_to_use = output_format_override.upper()
-    if format_to_use in ['EXR_264_MP4', 'EXR_AV1_MP4', 'EXR_VP9_WEBM']:
-        format_to_use = 'EXR'  # Render as EXR for EXR video formats
-    
-    format_map = {
-        'PNG': 'PNG',
-        'JPEG': 'JPEG',
-        'JPG': 'JPEG',
-        'EXR': 'OPEN_EXR',
-        'OPEN_EXR': 'OPEN_EXR',
-        'TARGA': 'TARGA',
-        'TIFF': 'TIFF',
-        'BMP': 'BMP',
-    }
-    blender_format = format_map.get(format_to_use, format_to_use)
+    print(f"Overriding output format from '{current_output_format}' to OPEN_EXR (always EXR for pipeline)")
     try:
-        scene.render.image_settings.file_format = blender_format
-        print(f"Successfully set output format to: {blender_format}")
+        scene.render.image_settings.file_format = 'OPEN_EXR'
+        # Lock output color space to linear (defense in depth; EXR is linear for encode pipeline)
+        if getattr(scene.render.image_settings, 'has_linear_colorspace', False) and hasattr(scene.render.image_settings, 'linear_colorspace_settings'):
+            try:
+                scene.render.image_settings.linear_colorspace_settings.name = 'Linear'
+            except Exception as ex:
+                print(f"Note: Could not set linear output: {ex}")
+        print("Successfully set output format to: OPEN_EXR")
     except Exception as e:
-        print(f"Warning: Could not set output format to {blender_format}: {e}")
+        print(f"Warning: Could not set output format to OPEN_EXR: {e}")
         print(f"Using blend file's format: {current_output_format}")
 else:
     print(f"Using blend file's output format: {current_output_format}")
@@ -186,9 +175,13 @@ if render_settings_override:
 if current_engine == 'CYCLES':
     # Check if CPU rendering is forced
     force_cpu = False
+    disable_hiprt = False
     if render_settings_override and render_settings_override.get('force_cpu'):
         force_cpu = render_settings_override.get('force_cpu', False)
         print("Force CPU rendering is enabled - skipping GPU detection")
+    if render_settings_override and render_settings_override.get('disable_hiprt'):
+        disable_hiprt = render_settings_override.get('disable_hiprt', False)
+        print("Disable HIPRT flag is enabled")
     
     # Ensure Cycles addon is enabled
     try:
@@ -332,7 +325,16 @@ if current_engine == 'CYCLES':
                 try:
                     if best_device_type == 'HIP':
                         # HIPRT (HIP Ray Tracing) for AMD GPUs
-                        if hasattr(cycles_prefs, 'use_hiprt'):
+                        if disable_hiprt:
+                            if hasattr(cycles_prefs, 'use_hiprt'):
+                                cycles_prefs.use_hiprt = False
+                                print(f"  Disabled HIPRT (HIP Ray Tracing) via runner compatibility flag")
+                            elif hasattr(scene.cycles, 'use_hiprt'):
+                                scene.cycles.use_hiprt = False
+                                print(f"  Disabled HIPRT (HIP Ray Tracing) via runner compatibility flag")
+                            else:
+                                print(f"  HIPRT toggle not available on this Blender version")
+                        elif hasattr(cycles_prefs, 'use_hiprt'):
                             cycles_prefs.use_hiprt = True
                             print(f"  Enabled HIPRT (HIP Ray Tracing) for faster rendering")
                         elif hasattr(scene.cycles, 'use_hiprt'):

pkg/types/types.go

@@ -93,7 +93,8 @@ type Task struct {
 	ID             int64      `json:"id"`
 	JobID          int64      `json:"job_id"`
 	RunnerID       *int64     `json:"runner_id,omitempty"`
-	Frame          int        `json:"frame"`
+	Frame          int        `json:"frame"`                   // frame start (inclusive) for render tasks
+	FrameEnd       *int       `json:"frame_end,omitempty"`    // frame end (inclusive); nil = single frame
 	TaskType       TaskType   `json:"task_type"`
 	Status         TaskStatus `json:"status"`
 	CurrentStep    string     `json:"current_step,omitempty"`
@@ -138,8 +139,6 @@ type CreateJobRequest struct {
 	UnhideObjects   *bool           `json:"unhide_objects,omitempty"`    // Optional: Enable unhide tweaks for objects/collections
 	EnableExecution *bool           `json:"enable_execution,omitempty"`  // Optional: Enable auto-execution in Blender (adds --enable-autoexec flag, defaults to false)
 	BlenderVersion  *string         `json:"blender_version,omitempty"`   // Optional: Override Blender version (e.g., "4.2" or "4.2.3")
-	PreserveHDR     *bool           `json:"preserve_hdr,omitempty"`      // Optional: Preserve HDR range for EXR encoding (uses HLG with bt709 primaries)
-	PreserveAlpha   *bool           `json:"preserve_alpha,omitempty"`   // Optional: Preserve alpha channel for EXR encoding (requires AV1 or VP9 codec)
 }
 
 // UpdateJobProgressRequest represents a request to update job progress
@@ -234,8 +233,6 @@ type BlendMetadata struct {
 	UnhideObjects     *bool             `json:"unhide_objects,omitempty"`   // Enable unhide tweaks for objects/collections
 	EnableExecution   *bool             `json:"enable_execution,omitempty"` // Enable auto-execution in Blender (adds --enable-autoexec flag, defaults to false)
 	BlenderVersion    string            `json:"blender_version,omitempty"`  // Detected or overridden Blender version (e.g., "4.2" or "4.2.3")
-	PreserveHDR       *bool             `json:"preserve_hdr,omitempty"`     // Preserve HDR range for EXR encoding (uses HLG with bt709 primaries)
-	PreserveAlpha     *bool             `json:"preserve_alpha,omitempty"`  // Preserve alpha channel for EXR encoding (requires AV1 or VP9 codec)
 }
 
 // MissingFilesInfo represents information about missing files/addons

web/app.js

@@ -1,269 +0,0 @@
-const API_BASE = '/api';
-
-let currentUser = null;
-
-// Check authentication on load
-async function init() {
-    await checkAuth();
-    setupEventListeners();
-    if (currentUser) {
-        showMainPage();
-        loadJobs();
-        loadRunners();
-    } else {
-        showLoginPage();
-    }
-}
-
-async function checkAuth() {
-    try {
-        const response = await fetch(`${API_BASE}/auth/me`);
-        if (response.ok) {
-            currentUser = await response.json();
-            return true;
-        }
-    } catch (error) {
-        console.error('Auth check failed:', error);
-    }
-    return false;
-}
-
-function showLoginPage() {
-    document.getElementById('login-page').classList.remove('hidden');
-    document.getElementById('main-page').classList.add('hidden');
-}
-
-function showMainPage() {
-    document.getElementById('login-page').classList.add('hidden');
-    document.getElementById('main-page').classList.remove('hidden');
-    if (currentUser) {
-        document.getElementById('user-name').textContent = currentUser.name || currentUser.email;
-    }
-}
-
-function setupEventListeners() {
-    // Navigation
-    document.querySelectorAll('.nav-btn').forEach(btn => {
-        btn.addEventListener('click', (e) => {
-            const page = e.target.dataset.page;
-            switchPage(page);
-        });
-    });
-
-    // Logout
-    document.getElementById('logout-btn').addEventListener('click', async () => {
-        await fetch(`${API_BASE}/auth/logout`, { method: 'POST' });
-        currentUser = null;
-        showLoginPage();
-    });
-
-    // Job form
-    document.getElementById('job-form').addEventListener('submit', async (e) => {
-        e.preventDefault();
-        await submitJob();
-    });
-}
-
-function switchPage(page) {
-    document.querySelectorAll('.content-page').forEach(p => p.classList.add('hidden'));
-    document.querySelectorAll('.nav-btn').forEach(b => b.classList.remove('active'));
-    
-    document.getElementById(`${page}-page`).classList.remove('hidden');
-    document.querySelector(`[data-page="${page}"]`).classList.add('active');
-
-    if (page === 'jobs') {
-        loadJobs();
-    } else if (page === 'runners') {
-        loadRunners();
-    }
-}
-
-async function submitJob() {
-    const form = document.getElementById('job-form');
-    const formData = new FormData(form);
-
-    const jobData = {
-        name: document.getElementById('job-name').value,
-        frame_start: parseInt(document.getElementById('frame-start').value),
-        frame_end: parseInt(document.getElementById('frame-end').value),
-        output_format: document.getElementById('output-format').value,
-    };
-
-    try {
-        // Create job
-        const jobResponse = await fetch(`${API_BASE}/jobs`, {
-            method: 'POST',
-            headers: { 'Content-Type': 'application/json' },
-            body: JSON.stringify(jobData),
-        });
-
-        if (!jobResponse.ok) {
-            throw new Error('Failed to create job');
-        }
-
-        const job = await jobResponse.json();
-
-        // Upload file
-        const fileInput = document.getElementById('blend-file');
-        if (fileInput.files.length > 0) {
-            const fileFormData = new FormData();
-            fileFormData.append('file', fileInput.files[0]);
-
-            const fileResponse = await fetch(`${API_BASE}/jobs/${job.id}/upload`, {
-                method: 'POST',
-                body: fileFormData,
-            });
-
-            if (!fileResponse.ok) {
-                throw new Error('Failed to upload file');
-            }
-        }
-
-        alert('Job submitted successfully!');
-        form.reset();
-        switchPage('jobs');
-        loadJobs();
-    } catch (error) {
-        alert('Failed to submit job: ' + error.message);
-    }
-}
-
-async function loadJobs() {
-    try {
-        const response = await fetch(`${API_BASE}/jobs`);
-        if (!response.ok) throw new Error('Failed to load jobs');
-        
-        const jobs = await response.json();
-        displayJobs(jobs);
-    } catch (error) {
-        console.error('Failed to load jobs:', error);
-    }
-}
-
-function displayJobs(jobs) {
-    const container = document.getElementById('jobs-list');
-    if (jobs.length === 0) {
-        container.innerHTML = '<p>No jobs yet. Submit a job to get started!</p>';
-        return;
-    }
-
-    container.innerHTML = jobs.map(job => `
-        <div class="job-card">
-            <h3>${escapeHtml(job.name)}</h3>
-            <div class="job-meta">
-                <span>Frames: ${job.frame_start}-${job.frame_end}</span>
-                <span>Format: ${job.output_format}</span>
-                <span>Created: ${new Date(job.created_at).toLocaleString()}</span>
-            </div>
-            <div class="job-status ${job.status}">${job.status}</div>
-            <div class="progress-bar">
-                <div class="progress-fill" style="width: ${job.progress}%"></div>
-            </div>
-            <div class="job-actions">
-                <button onclick="viewJob(${job.id})" class="btn btn-primary">View Details</button>
-                ${job.status === 'pending' || job.status === 'running' ? 
-                    `<button onclick="cancelJob(${job.id})" class="btn btn-secondary">Cancel</button>` : ''}
-            </div>
-        </div>
-    `).join('');
-}
-
-async function viewJob(jobId) {
-    try {
-        const response = await fetch(`${API_BASE}/jobs/${jobId}`);
-        if (!response.ok) throw new Error('Failed to load job');
-        
-        const job = await response.json();
-        
-        // Load files
-        const filesResponse = await fetch(`${API_BASE}/jobs/${jobId}/files`);
-        const files = filesResponse.ok ? await filesResponse.json() : [];
-        
-        const outputFiles = files.filter(f => f.file_type === 'output');
-        if (outputFiles.length > 0) {
-            let message = 'Output files:\n';
-            outputFiles.forEach(file => {
-                message += `- ${file.file_name}\n`;
-            });
-            message += '\nWould you like to download them?';
-            if (confirm(message)) {
-                outputFiles.forEach(file => {
-                    window.open(`${API_BASE}/jobs/${jobId}/files/${file.id}/download`, '_blank');
-                });
-            }
-        } else {
-            alert(`Job: ${job.name}\nStatus: ${job.status}\nProgress: ${job.progress.toFixed(1)}%`);
-        }
-    } catch (error) {
-        alert('Failed to load job details: ' + error.message);
-    }
-}
-
-async function cancelJob(jobId) {
-    if (!confirm('Are you sure you want to cancel this job?')) return;
-    
-    try {
-        const response = await fetch(`${API_BASE}/jobs/${jobId}`, {
-            method: 'DELETE',
-        });
-        if (!response.ok) throw new Error('Failed to cancel job');
-        loadJobs();
-    } catch (error) {
-        alert('Failed to cancel job: ' + error.message);
-    }
-}
-
-async function loadRunners() {
-    try {
-        const response = await fetch(`${API_BASE}/runners`);
-        if (!response.ok) throw new Error('Failed to load runners');
-        
-        const runners = await response.json();
-        displayRunners(runners);
-    } catch (error) {
-        console.error('Failed to load runners:', error);
-    }
-}
-
-function displayRunners(runners) {
-    const container = document.getElementById('runners-list');
-    if (runners.length === 0) {
-        container.innerHTML = '<p>No runners connected.</p>';
-        return;
-    }
-
-    container.innerHTML = runners.map(runner => {
-        const lastHeartbeat = new Date(runner.last_heartbeat);
-        const isOnline = (Date.now() - lastHeartbeat.getTime()) < 60000; // 1 minute
-        
-        return `
-            <div class="runner-card">
-                <h3>${escapeHtml(runner.name)}</h3>
-                <div class="runner-info">
-                    <span>Hostname: ${escapeHtml(runner.hostname)}</span>
-                    <span>Last heartbeat: ${lastHeartbeat.toLocaleString()}</span>
-                </div>
-                <div class="runner-status ${isOnline ? 'online' : 'offline'}">
-                    ${isOnline ? 'Online' : 'Offline'}
-                </div>
-            </div>
-        `;
-    }).join('');
-}
-
-function escapeHtml(text) {
-    const div = document.createElement('div');
-    div.textContent = text;
-    return div.innerHTML;
-}
-
-// Auto-refresh jobs every 5 seconds
-setInterval(() => {
-    if (currentUser && document.getElementById('jobs-page').classList.contains('hidden') === false) {
-        loadJobs();
-    }
-}, 5000);
-
-// Initialize on load
-init();
-

web/embed.go

@@ -4,42 +4,26 @@ import (
 	"embed"
 	"io/fs"
 	"net/http"
-	"strings"
 )
 
-//go:embed dist/*
-var distFS embed.FS
+//go:embed templates templates/partials static
+var uiFS embed.FS
 
-// GetFileSystem returns an http.FileSystem for the embedded web UI files
-func GetFileSystem() http.FileSystem {
-	subFS, err := fs.Sub(distFS, "dist")
+// GetStaticFileSystem returns an http.FileSystem for embedded UI assets.
+func GetStaticFileSystem() http.FileSystem {
+	subFS, err := fs.Sub(uiFS, "static")
 	if err != nil {
 		panic(err)
 	}
 	return http.FS(subFS)
 }
 
-// SPAHandler returns an http.Handler that serves the embedded SPA
-// It serves static files if they exist, otherwise falls back to index.html
-func SPAHandler() http.Handler {
-	fsys := GetFileSystem()
-	fileServer := http.FileServer(fsys)
-
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		path := r.URL.Path
-
-		// Try to open the file
-		f, err := fsys.Open(strings.TrimPrefix(path, "/"))
-		if err != nil {
-			// File doesn't exist, serve index.html for SPA routing
-			r.URL.Path = "/"
-			fileServer.ServeHTTP(w, r)
-			return
-		}
-		f.Close()
-
-		// File exists, serve it
-		fileServer.ServeHTTP(w, r)
-	})
+// StaticHandler serves /assets/* files from embedded static assets.
+func StaticHandler() http.Handler {
+	return http.StripPrefix("/assets/", http.FileServer(GetStaticFileSystem()))
 }
 
+// GetTemplateFS returns the embedded template filesystem.
+func GetTemplateFS() fs.FS {
+	return uiFS
+}

web/index.html

@@ -1,13 +0,0 @@
-<!doctype html>
-<html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>JiggaBlend</title>
-  </head>
-  <body>
-    <div id="root"></div>
-    <script type="module" src="/src/main.jsx"></script>
-  </body>
-</html>

web/package.json

@@ -1,21 +0,0 @@
-{
-  "name": "jiggablend-web",
-  "version": "1.0.0",
-  "type": "module",
-  "scripts": {
-    "dev": "vite",
-    "build": "vite build",
-    "preview": "vite preview"
-  },
-  "dependencies": {
-    "react": "^18.2.0",
-    "react-dom": "^18.2.0"
-  },
-  "devDependencies": {
-    "@vitejs/plugin-react": "^4.2.1",
-    "autoprefixer": "^10.4.16",
-    "postcss": "^8.4.32",
-    "tailwindcss": "^3.4.0",
-    "vite": "^7.2.4"
-  }
-}

web/postcss.config.js

@@ -1,7 +0,0 @@
-export default {
-  plugins: {
-    tailwindcss: {},
-    autoprefixer: {},
-  },
-}
-

web/src/App.jsx

@@ -1,50 +0,0 @@
-import { useState, useEffect, useMemo } from 'react';
-import { useAuth } from './hooks/useAuth';
-import Login from './components/Login';
-import Layout from './components/Layout';
-import JobList from './components/JobList';
-import JobSubmission from './components/JobSubmission';
-import AdminPanel from './components/AdminPanel';
-import ErrorBoundary from './components/ErrorBoundary';
-import LoadingSpinner from './components/LoadingSpinner';
-import './styles/index.css';
-
-function App() {
-  const { user, loading, refresh } = useAuth();
-  const [activeTab, setActiveTab] = useState('jobs');
-
-  // Memoize login component to ensure it's ready immediately
-  const loginComponent = useMemo(() => <Login key="login" />, []);
-
-  if (loading) {
-    return (
-      <div className="min-h-screen flex items-center justify-center bg-gray-900">
-        <LoadingSpinner size="md" />
-      </div>
-    );
-  }
-
-  if (!user) {
-    return loginComponent;
-  }
-
-  // Wrapper to change tabs - only check auth on mount, not on every navigation
-  const handleTabChange = (newTab) => {
-    setActiveTab(newTab);
-  };
-
-  return (
-    <Layout activeTab={activeTab} onTabChange={handleTabChange}>
-      <ErrorBoundary>
-        {activeTab === 'jobs' && <JobList />}
-        {activeTab === 'submit' && (
-          <JobSubmission onSuccess={() => handleTabChange('jobs')} />
-        )}
-        {activeTab === 'admin' && <AdminPanel />}
-      </ErrorBoundary>
-    </Layout>
-  );
-}
-
-export default App;
-

web/src/components/AdminPanel.jsx

@@ -1,810 +0,0 @@
-import { useState, useEffect, useRef } from 'react';
-import { admin, jobs, normalizeArrayResponse } from '../utils/api';
-import { wsManager } from '../utils/websocket';
-import UserJobs from './UserJobs';
-import PasswordChange from './PasswordChange';
-import LoadingSpinner from './LoadingSpinner';
-
-export default function AdminPanel() {
-  const [activeSection, setActiveSection] = useState('api-keys');
-  const [apiKeys, setApiKeys] = useState([]);
-  const [runners, setRunners] = useState([]);
-  const [users, setUsers] = useState([]);
-  const [loading, setLoading] = useState(false);
-  const [newAPIKeyName, setNewAPIKeyName] = useState('');
-  const [newAPIKeyDescription, setNewAPIKeyDescription] = useState('');
-  const [newAPIKeyScope, setNewAPIKeyScope] = useState('user'); // Default to user scope
-  const [newAPIKey, setNewAPIKey] = useState(null);
-  const [selectedUser, setSelectedUser] = useState(null);
-  const [registrationEnabled, setRegistrationEnabled] = useState(true);
-  const [passwordChangeUser, setPasswordChangeUser] = useState(null);
-  const listenerIdRef = useRef(null); // Listener ID for shared WebSocket
-  const subscribedChannelsRef = useRef(new Set()); // Track confirmed subscribed channels
-  const pendingSubscriptionsRef = useRef(new Set()); // Track pending subscriptions (waiting for confirmation)
-
-  // Connect to shared WebSocket on mount
-  useEffect(() => {
-    listenerIdRef.current = wsManager.subscribe('adminpanel', {
-      open: () => {
-        console.log('AdminPanel: Shared WebSocket connected');
-        // Subscribe to runners if already viewing runners section
-        if (activeSection === 'runners') {
-          subscribeToRunners();
-        }
-      },
-      message: (data) => {
-        // Handle subscription responses - update both local refs and wsManager
-        if (data.type === 'subscribed' && data.channel) {
-          pendingSubscriptionsRef.current.delete(data.channel);
-          subscribedChannelsRef.current.add(data.channel);
-          wsManager.confirmSubscription(data.channel);
-          console.log('Successfully subscribed to channel:', data.channel);
-        } else if (data.type === 'subscription_error' && data.channel) {
-          pendingSubscriptionsRef.current.delete(data.channel);
-          subscribedChannelsRef.current.delete(data.channel);
-          wsManager.failSubscription(data.channel);
-          console.error('Subscription failed for channel:', data.channel, data.error);
-        }
-        
-        // Handle runners channel messages
-        if (data.channel === 'runners' && data.type === 'runner_status') {
-          // Update runner in list
-          setRunners(prev => {
-            const index = prev.findIndex(r => r.id === data.runner_id);
-            if (index >= 0 && data.data) {
-              const updated = [...prev];
-              updated[index] = { ...updated[index], ...data.data };
-              return updated;
-            }
-            return prev;
-          });
-        }
-      },
-      error: (error) => {
-        console.error('AdminPanel: Shared WebSocket error:', error);
-      },
-      close: (event) => {
-        console.log('AdminPanel: Shared WebSocket closed:', event);
-        subscribedChannelsRef.current.clear();
-        pendingSubscriptionsRef.current.clear();
-      }
-    });
-
-    // Ensure connection is established
-    wsManager.connect();
-
-    return () => {
-      // Unsubscribe from all channels before unmounting
-      unsubscribeFromRunners();
-      if (listenerIdRef.current) {
-        wsManager.unsubscribe(listenerIdRef.current);
-        listenerIdRef.current = null;
-      }
-    };
-  }, []);
-
-  const subscribeToRunners = () => {
-    const channel = 'runners';
-    // Don't subscribe if already subscribed or pending
-    if (subscribedChannelsRef.current.has(channel) || pendingSubscriptionsRef.current.has(channel)) {
-      return;
-    }
-    wsManager.subscribeToChannel(channel);
-    subscribedChannelsRef.current.add(channel);
-    pendingSubscriptionsRef.current.add(channel);
-    console.log('Subscribing to runners channel');
-  };
-
-  const unsubscribeFromRunners = () => {
-    const channel = 'runners';
-    if (!subscribedChannelsRef.current.has(channel)) {
-      return; // Not subscribed
-    }
-    wsManager.unsubscribeFromChannel(channel);
-    subscribedChannelsRef.current.delete(channel);
-    pendingSubscriptionsRef.current.delete(channel);
-    console.log('Unsubscribed from runners channel');
-  };
-
-  useEffect(() => {
-    if (activeSection === 'api-keys') {
-      loadAPIKeys();
-      unsubscribeFromRunners();
-    } else if (activeSection === 'runners') {
-      loadRunners();
-      subscribeToRunners();
-    } else if (activeSection === 'users') {
-      loadUsers();
-      unsubscribeFromRunners();
-    } else if (activeSection === 'settings') {
-      loadSettings();
-      unsubscribeFromRunners();
-    }
-  }, [activeSection]);
-
-  const loadAPIKeys = async () => {
-    setLoading(true);
-    try {
-      const data = await admin.listAPIKeys();
-      setApiKeys(normalizeArrayResponse(data));
-    } catch (error) {
-      console.error('Failed to load API keys:', error);
-      setApiKeys([]);
-      alert('Failed to load API keys');
-    } finally {
-      setLoading(false);
-    }
-  };
-
-  const loadRunners = async () => {
-    setLoading(true);
-    try {
-      const data = await admin.listRunners();
-      setRunners(normalizeArrayResponse(data));
-    } catch (error) {
-      console.error('Failed to load runners:', error);
-      setRunners([]);
-      alert('Failed to load runners');
-    } finally {
-      setLoading(false);
-    }
-  };
-
-  const loadUsers = async () => {
-    setLoading(true);
-    try {
-      const data = await admin.listUsers();
-      setUsers(normalizeArrayResponse(data));
-    } catch (error) {
-      console.error('Failed to load users:', error);
-      setUsers([]);
-      alert('Failed to load users');
-    } finally {
-      setLoading(false);
-    }
-  };
-
-  const loadSettings = async () => {
-    setLoading(true);
-    try {
-      const data = await admin.getRegistrationEnabled();
-      setRegistrationEnabled(data.enabled);
-    } catch (error) {
-      console.error('Failed to load settings:', error);
-      alert('Failed to load settings');
-    } finally {
-      setLoading(false);
-    }
-  };
-
-  const handleToggleRegistration = async () => {
-    const newValue = !registrationEnabled;
-    setLoading(true);
-    try {
-      await admin.setRegistrationEnabled(newValue);
-      setRegistrationEnabled(newValue);
-      alert(`Registration ${newValue ? 'enabled' : 'disabled'}`);
-    } catch (error) {
-      console.error('Failed to update registration setting:', error);
-      alert('Failed to update registration setting');
-    } finally {
-      setLoading(false);
-    }
-  };
-
-  const generateAPIKey = async () => {
-    if (!newAPIKeyName.trim()) {
-      alert('API key name is required');
-      return;
-    }
-
-    setLoading(true);
-    try {
-      const data = await admin.generateAPIKey(newAPIKeyName.trim(), newAPIKeyDescription.trim() || undefined, newAPIKeyScope);
-      setNewAPIKey(data);
-      setNewAPIKeyName('');
-      setNewAPIKeyDescription('');
-      setNewAPIKeyScope('user');
-      await loadAPIKeys();
-    } catch (error) {
-      console.error('Failed to generate API key:', error);
-      alert('Failed to generate API key');
-    } finally {
-      setLoading(false);
-    }
-  };
-
-  const [deletingKeyId, setDeletingKeyId] = useState(null);
-  const [deletingRunnerId, setDeletingRunnerId] = useState(null);
-
-  const revokeAPIKey = async (keyId) => {
-    if (!confirm('Are you sure you want to delete this API key? This action cannot be undone.')) {
-      return;
-    }
-    setDeletingKeyId(keyId);
-    try {
-      await admin.deleteAPIKey(keyId);
-      await loadAPIKeys();
-    } catch (error) {
-      console.error('Failed to delete API key:', error);
-      alert('Failed to delete API key');
-    } finally {
-      setDeletingKeyId(null);
-    }
-  };
-
-
-  const deleteRunner = async (runnerId) => {
-    if (!confirm('Are you sure you want to delete this runner?')) {
-      return;
-    }
-    setDeletingRunnerId(runnerId);
-    try {
-      await admin.deleteRunner(runnerId);
-      await loadRunners();
-    } catch (error) {
-      console.error('Failed to delete runner:', error);
-      alert('Failed to delete runner');
-    } finally {
-      setDeletingRunnerId(null);
-    }
-  };
-
-  const copyToClipboard = (text) => {
-    navigator.clipboard.writeText(text);
-    alert('Copied to clipboard!');
-  };
-
-  const isAPIKeyActive = (isActive) => {
-    return isActive;
-  };
-
-  return (
-    <div className="space-y-6">
-      <div className="flex space-x-4 border-b border-gray-700">
-        <button
-          onClick={() => {
-            setActiveSection('api-keys');
-            setSelectedUser(null);
-          }}
-          className={`py-2 px-4 border-b-2 font-medium ${
-            activeSection === 'api-keys'
-              ? 'border-orange-500 text-orange-500'
-              : 'border-transparent text-gray-400 hover:text-gray-300'
-          }`}
-        >
-          API Keys
-        </button>
-        <button
-          onClick={() => {
-            setActiveSection('runners');
-            setSelectedUser(null);
-          }}
-          className={`py-2 px-4 border-b-2 font-medium ${
-            activeSection === 'runners'
-              ? 'border-orange-500 text-orange-500'
-              : 'border-transparent text-gray-400 hover:text-gray-300'
-          }`}
-        >
-          Runner Management
-        </button>
-        <button
-          onClick={() => {
-            setActiveSection('users');
-            setSelectedUser(null);
-          }}
-          className={`py-2 px-4 border-b-2 font-medium ${
-            activeSection === 'users'
-              ? 'border-orange-500 text-orange-500'
-              : 'border-transparent text-gray-400 hover:text-gray-300'
-          }`}
-        >
-          Users
-        </button>
-        <button
-          onClick={() => {
-            setActiveSection('settings');
-            setSelectedUser(null);
-          }}
-          className={`py-2 px-4 border-b-2 font-medium ${
-            activeSection === 'settings'
-              ? 'border-orange-500 text-orange-500'
-              : 'border-transparent text-gray-400 hover:text-gray-300'
-          }`}
-        >
-          Settings
-        </button>
-      </div>
-
-      {activeSection === 'api-keys' && (
-        <div className="space-y-6">
-          <div className="bg-gray-800 rounded-lg shadow-md p-6 border border-gray-700">
-            <h2 className="text-xl font-semibold mb-4 text-gray-100">Generate API Key</h2>
-            <div className="space-y-4">
-              <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
-                <div>
-                  <label className="block text-sm font-medium text-gray-300 mb-2">
-                    Name *
-                  </label>
-                  <input
-                    type="text"
-                    value={newAPIKeyName}
-                    onChange={(e) => setNewAPIKeyName(e.target.value)}
-                    placeholder="e.g., production-runner-01"
-                    className="w-full px-3 py-2 bg-gray-900 border border-gray-600 rounded-lg text-gray-100 focus:ring-2 focus:ring-orange-500 focus:border-transparent"
-                    required
-                  />
-                </div>
-                <div>
-                  <label className="block text-sm font-medium text-gray-300 mb-2">
-                    Description
-                  </label>
-                  <input
-                    type="text"
-                    value={newAPIKeyDescription}
-                    onChange={(e) => setNewAPIKeyDescription(e.target.value)}
-                    placeholder="Optional description"
-                    className="w-full px-3 py-2 bg-gray-900 border border-gray-600 rounded-lg text-gray-100 focus:ring-2 focus:ring-orange-500 focus:border-transparent"
-                  />
-                </div>
-                <div>
-                  <label className="block text-sm font-medium text-gray-300 mb-2">
-                    Scope
-                  </label>
-                  <select
-                    value={newAPIKeyScope}
-                    onChange={(e) => setNewAPIKeyScope(e.target.value)}
-                    className="w-full px-3 py-2 bg-gray-900 border border-gray-600 rounded-lg text-gray-100 focus:ring-2 focus:ring-orange-500 focus:border-transparent"
-                  >
-                    <option value="user">User - Only jobs from API key owner</option>
-                    <option value="manager">Manager - All jobs from any user</option>
-                  </select>
-                </div>
-              </div>
-              <div className="flex justify-end">
-                <button
-                  onClick={generateAPIKey}
-                  disabled={loading || !newAPIKeyName.trim()}
-                  className="px-6 py-2 bg-orange-600 text-white rounded-lg hover:bg-orange-500 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
-                >
-                  Generate API Key
-                </button>
-              </div>
-            </div>
-
-            {newAPIKey && (
-              <div className="mt-4 p-4 bg-green-400/20 border border-green-400/50 rounded-lg">
-                <p className="text-sm font-medium text-green-400 mb-2">New API Key Generated:</p>
-                <div className="space-y-2">
-                  <div className="flex items-center gap-2">
-                    <code className="flex-1 px-3 py-2 bg-gray-900 border border-green-400/50 rounded text-sm font-mono break-all text-gray-100">
-                      {newAPIKey.key}
-                    </code>
-                    <button
-                      onClick={() => copyToClipboard(newAPIKey.key)}
-                      className="px-4 py-2 bg-green-600 text-white rounded hover:bg-green-500 transition-colors text-sm whitespace-nowrap"
-                    >
-                      Copy Key
-                    </button>
-                  </div>
-                  <div className="text-xs text-green-400/80">
-                    <p><strong>Name:</strong> {newAPIKey.name}</p>
-                    {newAPIKey.description && <p><strong>Description:</strong> {newAPIKey.description}</p>}
-                  </div>
-                  <p className="text-xs text-green-400/80 mt-2">
-                    ⚠️ Save this API key securely. It will not be shown again.
-                  </p>
-                </div>
-              </div>
-            )}
-          </div>
-
-          <div className="bg-gray-800 rounded-lg shadow-md p-6 border border-gray-700">
-            <h2 className="text-xl font-semibold mb-4 text-gray-100">API Keys</h2>
-            {loading ? (
-              <LoadingSpinner size="sm" className="py-8" />
-            ) : !apiKeys || apiKeys.length === 0 ? (
-              <p className="text-gray-400 text-center py-8">No API keys generated yet.</p>
-            ) : (
-              <div className="overflow-x-auto">
-                <table className="min-w-full divide-y divide-gray-700">
-                  <thead className="bg-gray-900">
-                    <tr>
-                      <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                        Name
-                      </th>
-                      <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                        Scope
-                      </th>
-                      <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                        Key Prefix
-                      </th>
-                      <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                        Status
-                      </th>
-                      <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                        Created At
-                      </th>
-                      <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                        Actions
-                      </th>
-                    </tr>
-                  </thead>
-                  <tbody className="bg-gray-800 divide-y divide-gray-700">
-                    {apiKeys.map((key) => {
-                    return (
-                      <tr key={key.id}>
-                        <td className="px-6 py-4 whitespace-nowrap">
-                          <div>
-                            <div className="text-sm font-medium text-gray-100">{key.name}</div>
-                            {key.description && (
-                              <div className="text-sm text-gray-400">{key.description}</div>
-                            )}
-                          </div>
-                        </td>
-                        <td className="px-6 py-4 whitespace-nowrap">
-                          <span className={`px-2 py-1 text-xs font-medium rounded-full ${
-                            key.scope === 'manager'
-                              ? 'bg-purple-400/20 text-purple-400'
-                              : 'bg-blue-400/20 text-blue-400'
-                          }`}>
-                            {key.scope === 'manager' ? 'Manager' : 'User'}
-                          </span>
-                        </td>
-                        <td className="px-6 py-4 whitespace-nowrap">
-                          <code className="text-sm font-mono text-gray-300">
-                            {key.key_prefix}
-                          </code>
-                        </td>
-                        <td className="px-6 py-4 whitespace-nowrap">
-                          {!key.is_active ? (
-                            <span className="px-2 py-1 text-xs font-medium rounded-full bg-gray-500/20 text-gray-400">
-                              Revoked
-                            </span>
-                          ) : (
-                            <span className="px-2 py-1 text-xs font-medium rounded-full bg-green-400/20 text-green-400">
-                              Active
-                            </span>
-                          )}
-                        </td>
-                        <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-400">
-                          {new Date(key.created_at).toLocaleString()}
-                        </td>
-                          <td className="px-6 py-4 whitespace-nowrap text-sm space-x-2">
-                            <button
-                              onClick={() => revokeAPIKey(key.id)}
-                              disabled={deletingKeyId === key.id}
-                              className="text-red-400 hover:text-red-300 font-medium disabled:opacity-50 disabled:cursor-not-allowed"
-                              title="Delete API key"
-                            >
-                              {deletingKeyId === key.id ? 'Deleting...' : 'Delete'}
-                            </button>
-                          </td>
-                        </tr>
-                      );
-                    })}
-                  </tbody>
-                </table>
-              </div>
-            )}
-          </div>
-        </div>
-      )}
-
-      {activeSection === 'runners' && (
-        <div className="bg-gray-800 rounded-lg shadow-md p-6 border border-gray-700">
-          <h2 className="text-xl font-semibold mb-4 text-gray-100">Runner Management</h2>
-          {loading ? (
-            <LoadingSpinner size="sm" className="py-8" />
-          ) : !runners || runners.length === 0 ? (
-            <p className="text-gray-400 text-center py-8">No runners registered.</p>
-          ) : (
-            <div className="overflow-x-auto">
-              <table className="min-w-full divide-y divide-gray-700">
-                <thead className="bg-gray-900">
-                  <tr>
-                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                      Name
-                    </th>
-                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                      Hostname
-                    </th>
-                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                      Status
-                    </th>
-                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                      API Key
-                    </th>
-                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                      Priority
-                    </th>
-                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                      Capabilities
-                    </th>
-                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                      Last Heartbeat
-                    </th>
-                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                      Actions
-                    </th>
-                  </tr>
-                </thead>
-                <tbody className="bg-gray-800 divide-y divide-gray-700">
-                  {runners.map((runner) => {
-                    const isOnline = new Date(runner.last_heartbeat) > new Date(Date.now() - 60000);
-                    return (
-                      <tr key={runner.id}>
-                        <td className="px-6 py-4 whitespace-nowrap text-sm font-medium text-gray-100">
-                          {runner.name}
-                        </td>
-                        <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-400">
-                          {runner.hostname}
-                        </td>
-                        <td className="px-6 py-4 whitespace-nowrap">
-                          <span
-                            className={`px-2 py-1 text-xs font-medium rounded-full ${
-                              isOnline
-                                ? 'bg-green-400/20 text-green-400'
-                                : 'bg-gray-500/20 text-gray-400'
-                            }`}
-                          >
-                            {isOnline ? 'Online' : 'Offline'}
-                          </span>
-                        </td>
-                        <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-400">
-                          <code className="text-xs font-mono bg-gray-900 px-2 py-1 rounded">
-                            jk_r{runner.id % 10}_...
-                          </code>
-                        </td>
-                        <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-400">
-                          {runner.priority}
-                        </td>
-                        <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-400">
-                          {runner.capabilities ? (
-                            (() => {
-                              try {
-                                const caps = JSON.parse(runner.capabilities);
-                                const enabled = Object.entries(caps)
-                                  .filter(([_, v]) => v)
-                                  .map(([k, _]) => k)
-                                  .join(', ');
-                                return enabled || 'None';
-                              } catch {
-                                return runner.capabilities;
-                              }
-                            })()
-                          ) : (
-                            'None'
-                          )}
-                        </td>
-                        <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-400">
-                          {new Date(runner.last_heartbeat).toLocaleString()}
-                        </td>
-                        <td className="px-6 py-4 whitespace-nowrap text-sm">
-                          <button
-                            onClick={() => deleteRunner(runner.id)}
-                            disabled={deletingRunnerId === runner.id}
-                            className="text-red-400 hover:text-red-300 font-medium disabled:opacity-50 disabled:cursor-not-allowed"
-                          >
-                            {deletingRunnerId === runner.id ? 'Deleting...' : 'Delete'}
-                          </button>
-                        </td>
-                      </tr>
-                    );
-                  })}
-                </tbody>
-              </table>
-            </div>
-          )}
-        </div>
-      )}
-
-      {activeSection === 'change-password' && passwordChangeUser && (
-        <div className="bg-gray-800 rounded-lg shadow-md p-6 border border-gray-700">
-          <button
-            onClick={() => {
-              setPasswordChangeUser(null);
-              setActiveSection('users');
-            }}
-            className="text-gray-400 hover:text-gray-300 mb-4 flex items-center gap-2"
-          >
-            <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 19l-7-7 7-7" />
-            </svg>
-            Back to Users
-          </button>
-          <PasswordChange
-            targetUserId={passwordChangeUser.id}
-            targetUserName={passwordChangeUser.name || passwordChangeUser.email}
-            onSuccess={() => {
-              setPasswordChangeUser(null);
-              setActiveSection('users');
-            }}
-          />
-        </div>
-      )}
-
-      {activeSection === 'users' && (
-        <div className="space-y-6">
-          {selectedUser ? (
-            <UserJobs
-              userId={selectedUser.id}
-              userName={selectedUser.name || selectedUser.email}
-              onBack={() => setSelectedUser(null)}
-            />
-          ) : (
-            <div className="bg-gray-800 rounded-lg shadow-md p-6 border border-gray-700">
-              <h2 className="text-xl font-semibold mb-4 text-gray-100">User Management</h2>
-              {loading ? (
-                <LoadingSpinner size="sm" className="py-8" />
-              ) : !users || users.length === 0 ? (
-                <p className="text-gray-400 text-center py-8">No users found.</p>
-              ) : (
-                <div className="overflow-x-auto">
-                  <table className="min-w-full divide-y divide-gray-700">
-                    <thead className="bg-gray-900">
-                      <tr>
-                        <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                          Email
-                        </th>
-                        <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                          Name
-                        </th>
-                        <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                          Provider
-                        </th>
-                        <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                          Admin
-                        </th>
-                        <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                          Jobs
-                        </th>
-                        <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                          Created
-                        </th>
-                        <th className="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">
-                          Actions
-                        </th>
-                      </tr>
-                    </thead>
-                    <tbody className="bg-gray-800 divide-y divide-gray-700">
-                      {users.map((user) => (
-                        <tr key={user.id}>
-                          <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-100">
-                            {user.email}
-                          </td>
-                          <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-300">
-                            {user.name}
-                          </td>
-                          <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-400">
-                            {user.oauth_provider}
-                          </td>
-                          <td className="px-6 py-4 whitespace-nowrap">
-                            <div className="flex items-center gap-2">
-                              {user.is_admin ? (
-                                <span className="px-2 py-1 text-xs font-medium rounded-full bg-orange-400/20 text-orange-400">
-                                  Admin
-                                </span>
-                              ) : (
-                                <span className="px-2 py-1 text-xs font-medium rounded-full bg-gray-500/20 text-gray-400">
-                                  User
-                                </span>
-                              )}
-                              <button
-                                onClick={async () => {
-                                  if (user.is_first_user && user.is_admin) {
-                                    alert('Cannot remove admin status from the first user');
-                                    return;
-                                  }
-                                  if (!confirm(`Are you sure you want to ${user.is_admin ? 'remove admin privileges from' : 'grant admin privileges to'} ${user.name || user.email}?`)) {
-                                    return;
-                                  }
-                                  try {
-                                    await admin.setUserAdminStatus(user.id, !user.is_admin);
-                                    await loadUsers();
-                                    alert(`Admin status ${user.is_admin ? 'removed' : 'granted'} successfully`);
-                                  } catch (error) {
-                                    console.error('Failed to update admin status:', error);
-                                    const errorMsg = error.message || 'Failed to update admin status';
-                                    if (errorMsg.includes('first user')) {
-                                      alert('Cannot remove admin status from the first user');
-                                    } else {
-                                      alert(errorMsg);
-                                    }
-                                  }
-                                }}
-                                disabled={user.is_first_user && user.is_admin}
-                                className={`text-xs px-2 py-1 rounded ${
-                                  user.is_first_user && user.is_admin
-                                    ? 'text-gray-500 bg-gray-500/10 cursor-not-allowed'
-                                    : user.is_admin
-                                    ? 'text-red-400 hover:text-red-300 bg-red-400/10 hover:bg-red-400/20'
-                                    : 'text-green-400 hover:text-green-300 bg-green-400/10 hover:bg-green-400/20'
-                                } transition-colors`}
-                                title={user.is_first_user && user.is_admin ? 'First user must remain admin' : user.is_admin ? 'Remove admin privileges' : 'Grant admin privileges'}
-                              >
-                                {user.is_admin ? 'Remove Admin' : 'Make Admin'}
-                              </button>
-                            </div>
-                          </td>
-                          <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-400">
-                            {user.job_count || 0}
-                          </td>
-                          <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-400">
-                            {new Date(user.created_at).toLocaleString()}
-                          </td>
-                          <td className="px-6 py-4 whitespace-nowrap text-sm">
-                            <div className="flex gap-3">
-                              <button
-                                onClick={() => setSelectedUser(user)}
-                                className="text-orange-400 hover:text-orange-300 font-medium"
-                              >
-                                View Jobs
-                              </button>
-                              {user.oauth_provider === 'local' && (
-                                <button
-                                  onClick={() => {
-                                    const userForPassword = { id: user.id, name: user.name || user.email };
-                                    setPasswordChangeUser(userForPassword);
-                                    setSelectedUser(null);
-                                    setActiveSection('change-password');
-                                  }}
-                                  className="text-blue-400 hover:text-blue-300 font-medium"
-                                >
-                                  Change Password
-                                </button>
-                              )}
-                            </div>
-                          </td>
-                        </tr>
-                      ))}
-                    </tbody>
-                  </table>
-                </div>
-              )}
-            </div>
-          )}
-        </div>
-      )}
-
-      {activeSection === 'settings' && (
-        <div className="space-y-6">
-          <PasswordChange />
-          <div className="bg-gray-800 rounded-lg shadow-md p-6 border border-gray-700">
-            <h2 className="text-xl font-semibold mb-6 text-gray-100">System Settings</h2>
-            
-            <div className="space-y-6">
-            <div className="flex items-center justify-between p-4 bg-gray-900 rounded-lg border border-gray-700">
-              <div>
-                <h3 className="text-lg font-medium text-gray-100 mb-1">User Registration</h3>
-                <p className="text-sm text-gray-400">
-                  {registrationEnabled
-                    ? 'New users can register via OAuth or local login'
-                    : 'Registration is disabled. Only existing users can log in.'}
-                </p>
-              </div>
-              <div className="flex items-center gap-4">
-                <span className={`text-sm font-medium ${registrationEnabled ? 'text-green-400' : 'text-red-400'}`}>
-                  {registrationEnabled ? 'Enabled' : 'Disabled'}
-                </span>
-                <button
-                  onClick={handleToggleRegistration}
-                  disabled={loading}
-                  className={`px-6 py-2 rounded-lg font-medium transition-colors ${
-                    registrationEnabled
-                      ? 'bg-red-600 hover:bg-red-500 text-white'
-                      : 'bg-green-600 hover:bg-green-500 text-white'
-                  } disabled:opacity-50 disabled:cursor-not-allowed`}
-                >
-                  {registrationEnabled ? 'Disable' : 'Enable'}
-                </button>
-              </div>
-            </div>
-            </div>
-          </div>
-        </div>
-      )}
-    </div>
-  );
-}
-

web/src/components/ErrorBoundary.jsx

@@ -1,41 +0,0 @@
-import React from 'react';
-
-class ErrorBoundary extends React.Component {
-  constructor(props) {
-    super(props);
-    this.state = { hasError: false, error: null };
-  }
-
-  static getDerivedStateFromError(error) {
-    return { hasError: true, error };
-  }
-
-  componentDidCatch(error, errorInfo) {
-    console.error('ErrorBoundary caught an error:', error, errorInfo);
-  }
-
-  render() {
-    if (this.state.hasError) {
-      return (
-        <div className="p-6 bg-red-400/20 border border-red-400/50 rounded-lg text-red-400">
-          <h2 className="text-xl font-semibold mb-2">Something went wrong</h2>
-          <p className="mb-4">{this.state.error?.message || 'An unexpected error occurred'}</p>
-          <button
-            onClick={() => {
-              this.setState({ hasError: false, error: null });
-              window.location.reload();
-            }}
-            className="px-4 py-2 bg-red-600 text-white rounded-lg hover:bg-red-500 transition-colors"
-          >
-            Reload Page
-          </button>
-        </div>
-      );
-    }
-
-    return this.props.children;
-  }
-}
-
-export default ErrorBoundary;
-

web/src/components/ErrorMessage.jsx

@@ -1,26 +0,0 @@
-import React from 'react';
-
-/**
- * Shared ErrorMessage component for consistent error display
- * Sanitizes error messages to prevent XSS
- */
-export default function ErrorMessage({ error, className = '' }) {
-  if (!error) return null;
-
-  // Sanitize error message - escape HTML entities
-  const sanitize = (text) => {
-    const div = document.createElement('div');
-    div.textContent = text;
-    return div.innerHTML;
-  };
-
-  const sanitizedError = typeof error === 'string' ? sanitize(error) : sanitize(error.message || 'An error occurred');
-
-  return (
-    <div className={`p-4 bg-red-400/20 border border-red-400/50 rounded-lg text-red-400 ${className}`}>
-      <p className="font-semibold">Error:</p>
-      <p dangerouslySetInnerHTML={{ __html: sanitizedError }} />
-    </div>
-  );
-}
-

web/src/components/FileExplorer.jsx

@@ -1,191 +0,0 @@
-import { useState } from 'react';
-
-export default function FileExplorer({ files, onDownload, onPreview, onVideoPreview, isImageFile }) {
-  const [expandedPaths, setExpandedPaths] = useState(new Set()); // Root folder collapsed by default
-
-  // Build directory tree from file paths
-  const buildTree = (files) => {
-    const tree = {};
-
-    files.forEach(file => {
-      const path = file.file_name;
-      // Handle both paths with slashes and single filenames
-      const parts = path.includes('/') ? path.split('/').filter(p => p) : [path];
-      
-      // If it's a single file at root (no slashes), treat it specially
-      if (parts.length === 1 && !path.includes('/')) {
-        tree[parts[0]] = {
-          name: parts[0],
-          isFile: true,
-          file: file,
-          children: {},
-          path: parts[0]
-        };
-        return;
-      }
-      
-      let current = tree;
-      parts.forEach((part, index) => {
-        if (!current[part]) {
-          current[part] = {
-            name: part,
-            isFile: index === parts.length - 1,
-            file: index === parts.length - 1 ? file : null,
-            children: {},
-            path: parts.slice(0, index + 1).join('/')
-          };
-        }
-        current = current[part].children;
-      });
-    });
-
-    return tree;
-  };
-
-  const togglePath = (path) => {
-    const newExpanded = new Set(expandedPaths);
-    if (newExpanded.has(path)) {
-      newExpanded.delete(path);
-    } else {
-      newExpanded.add(path);
-    }
-    setExpandedPaths(newExpanded);
-  };
-
-  const renderTree = (node, level = 0, parentPath = '') => {
-    const items = Object.values(node).sort((a, b) => {
-      // Directories first, then files
-      if (a.isFile !== b.isFile) {
-        return a.isFile ? 1 : -1;
-      }
-      return a.name.localeCompare(b.name);
-    });
-
-    return items.map((item) => {
-      const fullPath = parentPath ? `${parentPath}/${item.name}` : item.name;
-      const isExpanded = expandedPaths.has(fullPath);
-      const indent = level * 20;
-
-      if (item.isFile) {
-        const file = item.file;
-        const isImage = isImageFile && isImageFile(file.file_name);
-        const isVideo = file.file_name.toLowerCase().endsWith('.mp4');
-        const sizeMB = (file.file_size / 1024 / 1024).toFixed(2);
-        const isArchive = file.file_name.endsWith('.tar') || file.file_name.endsWith('.zip');
-
-        return (
-          <div key={fullPath} className="flex items-center justify-between py-1.5 hover:bg-gray-800/50 rounded px-2" style={{ paddingLeft: `${indent + 8}px` }}>
-            <div className="flex items-center gap-2 flex-1 min-w-0">
-              <span className="text-gray-500 text-sm">{isArchive ? '📦' : isVideo ? '🎬' : '📄'}</span>
-              <span className="text-gray-200 text-sm truncate" title={item.name}>
-                {item.name}
-              </span>
-              <span className="text-gray-500 text-xs ml-2">{sizeMB} MB</span>
-            </div>
-            <div className="flex gap-2 ml-4 shrink-0">
-              {isVideo && onVideoPreview && (
-                <button
-                  onClick={() => onVideoPreview(file)}
-                  className="px-2 py-1 bg-purple-600 text-white rounded text-xs hover:bg-purple-500 transition-colors"
-                  title="Play Video"
-                >
-                  ▶
-                </button>
-              )}
-              {isImage && onPreview && (
-                <button
-                  onClick={() => onPreview(file)}
-                  className="px-2 py-1 bg-blue-600 text-white rounded text-xs hover:bg-blue-500 transition-colors"
-                  title="Preview"
-                >
-                  👁
-                </button>
-              )}
-              {onDownload && file.id && (
-                <button
-                  onClick={() => onDownload(file.id, file.file_name)}
-                  className="px-2 py-1 bg-orange-600 text-white rounded text-xs hover:bg-orange-500 transition-colors"
-                  title="Download"
-                >
-                  ⬇
-                </button>
-              )}
-            </div>
-          </div>
-        );
-      } else {
-        const hasChildren = Object.keys(item.children).length > 0;
-        return (
-          <div key={fullPath}>
-            <div
-              className="flex items-center gap-2 py-1.5 hover:bg-gray-800/50 rounded px-2 cursor-pointer select-none"
-              style={{ paddingLeft: `${indent + 8}px` }}
-              onClick={() => hasChildren && togglePath(fullPath)}
-            >
-              <span className="text-gray-400 text-xs w-4 flex items-center justify-center">
-                {hasChildren ? (isExpanded ? '▼' : '▶') : '•'}
-              </span>
-              <span className="text-gray-500 text-sm">
-                {hasChildren ? (isExpanded ? '📂' : '📁') : '📁'}
-              </span>
-              <span className="text-gray-300 text-sm font-medium">{item.name}</span>
-              {hasChildren && (
-                <span className="text-gray-500 text-xs ml-2">
-                  ({Object.keys(item.children).length})
-                </span>
-              )}
-            </div>
-            {hasChildren && isExpanded && (
-              <div className="ml-2">
-                {renderTree(item.children, level + 1, fullPath)}
-              </div>
-            )}
-          </div>
-        );
-      }
-    });
-  };
-
-  const tree = buildTree(files);
-
-  if (Object.keys(tree).length === 0) {
-    return (
-      <div className="text-gray-400 text-sm py-4 text-center">
-        No files
-      </div>
-    );
-  }
-
-  // Wrap tree in a root folder
-  const rootExpanded = expandedPaths.has('');
-
-  return (
-    <div className="bg-gray-900 rounded-lg border border-gray-700 p-3">
-      <div className="space-y-1">
-        <div>
-          <div
-            className="flex items-center gap-2 py-1.5 hover:bg-gray-800/50 rounded px-2 cursor-pointer select-none"
-            onClick={() => togglePath('')}
-          >
-            <span className="text-gray-400 text-xs w-4 flex items-center justify-center">
-              {rootExpanded ? '▼' : '▶'}
-            </span>
-            <span className="text-gray-500 text-sm">
-              {rootExpanded ? '📂' : '📁'}
-            </span>
-            <span className="text-gray-300 text-sm font-medium">Files</span>
-            <span className="text-gray-500 text-xs ml-2">
-              ({Object.keys(tree).length})
-            </span>
-          </div>
-          {rootExpanded && (
-            <div className="ml-2">
-              {renderTree(tree)}
-            </div>
-          )}
-        </div>
-      </div>
-    </div>
-  );
-}
-

web/src/components/JobList.jsx

@@ -1,289 +0,0 @@
-import { useState, useEffect, useRef } from 'react';
-import { jobs, normalizeArrayResponse } from '../utils/api';
-import { wsManager } from '../utils/websocket';
-import JobDetails from './JobDetails';
-import LoadingSpinner from './LoadingSpinner';
-
-export default function JobList() {
-  const [jobList, setJobList] = useState([]);
-  const [loading, setLoading] = useState(true);
-  const [selectedJob, setSelectedJob] = useState(null);
-  const [pagination, setPagination] = useState({ total: 0, limit: 50, offset: 0 });
-  const [hasMore, setHasMore] = useState(true);
-  const listenerIdRef = useRef(null);
-
-  useEffect(() => {
-    loadJobs();
-    // Use shared WebSocket manager for real-time updates
-    listenerIdRef.current = wsManager.subscribe('joblist', {
-      open: () => {
-        console.log('JobList: Shared WebSocket connected');
-        // Load initial job list via HTTP to get current state
-        loadJobs();
-      },
-      message: (data) => {
-        console.log('JobList: Client WebSocket message received:', data.type, data.channel, data);
-        // Handle jobs channel messages (always broadcasted)
-        if (data.channel === 'jobs') {
-          if (data.type === 'job_update' && data.data) {
-            console.log('JobList: Updating job:', data.job_id, data.data);
-            // Update job in list
-            setJobList(prev => {
-              const prevArray = Array.isArray(prev) ? prev : [];
-              const index = prevArray.findIndex(j => j.id === data.job_id);
-              if (index >= 0) {
-                const updated = [...prevArray];
-                updated[index] = { ...updated[index], ...data.data };
-                console.log('JobList: Updated job at index', index, updated[index]);
-                return updated;
-              }
-              // If job not in current page, reload to get updated list
-              if (data.data.status === 'completed' || data.data.status === 'failed') {
-                loadJobs();
-              }
-              return prevArray;
-            });
-          } else if (data.type === 'job_created' && data.data) {
-            console.log('JobList: New job created:', data.job_id, data.data);
-            // New job created - add to list
-            setJobList(prev => {
-              const prevArray = Array.isArray(prev) ? prev : [];
-              // Check if job already exists (avoid duplicates)
-              if (prevArray.findIndex(j => j.id === data.job_id) >= 0) {
-                return prevArray;
-              }
-              // Add new job at the beginning
-              return [data.data, ...prevArray];
-            });
-          }
-        } else if (data.type === 'connected') {
-          // Connection established
-          console.log('JobList: WebSocket connected');
-        }
-      },
-      error: (error) => {
-        console.error('JobList: Shared WebSocket error:', error);
-      },
-      close: (event) => {
-        console.log('JobList: Shared WebSocket closed:', event);
-      }
-    });
-
-    // Ensure connection is established
-    wsManager.connect();
-
-    return () => {
-      if (listenerIdRef.current) {
-        wsManager.unsubscribe(listenerIdRef.current);
-        listenerIdRef.current = null;
-      }
-    };
-  }, []);
-
-  const loadJobs = async (append = false) => {
-    try {
-      const offset = append ? pagination.offset + pagination.limit : 0;
-      const result = await jobs.listSummary({ 
-        limit: pagination.limit, 
-        offset,
-        sort: 'created_at:desc'
-      });
-      
-      // Handle both old format (array) and new format (object with data, total, etc.)
-      const jobsArray = normalizeArrayResponse(result);
-      const total = result.total !== undefined ? result.total : jobsArray.length;
-      
-      if (append) {
-        setJobList(prev => {
-          const prevArray = Array.isArray(prev) ? prev : [];
-          return [...prevArray, ...jobsArray];
-        });
-        setPagination(prev => ({ ...prev, offset, total }));
-      } else {
-        setJobList(jobsArray);
-        setPagination({ total, limit: result.limit || pagination.limit, offset: result.offset || 0 });
-      }
-      
-      setHasMore(offset + jobsArray.length < total);
-    } catch (error) {
-      console.error('Failed to load jobs:', error);
-      // Ensure jobList is always an array even on error
-      if (!append) {
-        setJobList([]);
-      }
-    } finally {
-      setLoading(false);
-    }
-  };
-
-  const loadMore = () => {
-    if (!loading && hasMore) {
-      loadJobs(true);
-    }
-  };
-
-  // Keep selectedJob in sync with the job list when it refreshes
-  useEffect(() => {
-    if (selectedJob && jobList.length > 0) {
-      const freshJob = jobList.find(j => j.id === selectedJob.id);
-      if (freshJob) {
-        // Update to the fresh object from the list to keep it in sync
-        setSelectedJob(freshJob);
-      } else {
-        // Job was deleted or no longer exists, clear selection
-        setSelectedJob(null);
-      }
-    }
-    // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [jobList]); // Only depend on jobList, not selectedJob to avoid infinite loops
-
-  const handleCancel = async (jobId) => {
-    if (!confirm('Are you sure you want to cancel this job?')) return;
-    try {
-      await jobs.cancel(jobId);
-      loadJobs();
-    } catch (error) {
-      alert('Failed to cancel job: ' + error.message);
-    }
-  };
-
-  const handleDelete = async (jobId) => {
-    if (!confirm('Are you sure you want to permanently delete this job? This action cannot be undone.')) return;
-    try {
-      // Optimistically update the list
-      setJobList(prev => {
-        const prevArray = Array.isArray(prev) ? prev : [];
-        return prevArray.filter(j => j.id !== jobId);
-      });
-      if (selectedJob && selectedJob.id === jobId) {
-        setSelectedJob(null);
-      }
-      // Then actually delete
-      await jobs.delete(jobId);
-      // Reload to ensure consistency
-      loadJobs();
-    } catch (error) {
-      // On error, reload to restore correct state
-      loadJobs();
-      alert('Failed to delete job: ' + error.message);
-    }
-  };
-
-  const getStatusColor = (status) => {
-    const colors = {
-      pending: 'bg-yellow-400/20 text-yellow-400',
-      running: 'bg-orange-400/20 text-orange-400',
-      completed: 'bg-green-400/20 text-green-400',
-      failed: 'bg-red-400/20 text-red-400',
-      cancelled: 'bg-gray-500/20 text-gray-400',
-    };
-    return colors[status] || colors.pending;
-  };
-
-  if (loading && jobList.length === 0) {
-    return <LoadingSpinner size="md" className="h-64" />;
-  }
-
-  if (jobList.length === 0) {
-    return (
-      <div className="text-center py-12">
-        <p className="text-gray-400 text-lg">No jobs yet. Submit a job to get started!</p>
-      </div>
-    );
-  }
-
-  return (
-    <>
-      <div className="grid gap-6 md:grid-cols-2 lg:grid-cols-3">
-        {jobList.map((job) => (
-          <div
-            key={job.id}
-            className="bg-gray-800 rounded-lg shadow-md hover:shadow-lg transition-shadow p-6 border-l-4 border-orange-500 border border-gray-700"
-          >
-            <div className="flex justify-between items-start mb-4">
-              <h3 className="text-xl font-semibold text-gray-100">{job.name}</h3>
-              <span className={`px-3 py-1 rounded-full text-xs font-medium ${getStatusColor(job.status)}`}>
-                {job.status}
-              </span>
-            </div>
-
-            <div className="space-y-2 text-sm text-gray-400 mb-4">
-              {job.frame_start !== undefined && job.frame_end !== undefined && (
-                <p>Frames: {job.frame_start} - {job.frame_end}</p>
-              )}
-              {job.output_format && <p>Format: {job.output_format}</p>}
-              <p>Created: {new Date(job.created_at).toLocaleString()}</p>
-            </div>
-
-            <div className="mb-4">
-              <div className="flex justify-between text-xs text-gray-400 mb-1">
-                <span>Progress</span>
-                <span>{job.progress.toFixed(1)}%</span>
-              </div>
-              <div className="w-full bg-gray-700 rounded-full h-2">
-                <div
-                  className="bg-orange-500 h-2 rounded-full transition-all duration-300"
-                  style={{ width: `${job.progress}%` }}
-                ></div>
-              </div>
-            </div>
-
-            <div className="flex gap-2">
-              <button
-                onClick={() => {
-                  // Fetch full job details when viewing
-                  jobs.get(job.id).then(fullJob => {
-                    setSelectedJob(fullJob);
-                  }).catch(err => {
-                    console.error('Failed to load job details:', err);
-                    setSelectedJob(job); // Fallback to summary
-                  });
-                }}
-                className="flex-1 px-4 py-2 bg-orange-600 text-white rounded-lg hover:bg-orange-500 transition-colors font-medium"
-              >
-                View Details
-              </button>
-              {(job.status === 'pending' || job.status === 'running') && (
-                <button
-                  onClick={() => handleCancel(job.id)}
-                  className="px-4 py-2 bg-gray-700 text-gray-200 rounded-lg hover:bg-gray-600 transition-colors font-medium"
-                >
-                  Cancel
-                </button>
-              )}
-              {(job.status === 'completed' || job.status === 'failed' || job.status === 'cancelled') && (
-                <button
-                  onClick={() => handleDelete(job.id)}
-                  className="px-4 py-2 bg-red-600 text-white rounded-lg hover:bg-red-500 transition-colors font-medium"
-                  title="Delete job"
-                >
-                  Delete
-                </button>
-              )}
-            </div>
-          </div>
-        ))}
-      </div>
-
-      {hasMore && (
-        <div className="flex justify-center mt-6">
-          <button
-            onClick={loadMore}
-            disabled={loading}
-            className="px-6 py-2 bg-gray-700 text-gray-200 rounded-lg hover:bg-gray-600 transition-colors font-medium disabled:opacity-50"
-          >
-            {loading ? 'Loading...' : 'Load More'}
-          </button>
-        </div>
-      )}
-
-      {selectedJob && (
-        <JobDetails
-          job={selectedJob}
-          onClose={() => setSelectedJob(null)}
-          onUpdate={loadJobs}
-        />
-      )}
-    </>
-  );
-}

web/src/components/Layout.jsx

@@ -1,76 +0,0 @@
-import { useAuth } from '../hooks/useAuth';
-
-export default function Layout({ children, activeTab, onTabChange }) {
-  const { user, logout } = useAuth();
-  const isAdmin = user?.is_admin || false;
-
-  // Note: If user becomes null, App.jsx will handle showing Login component
-  // We don't need to redirect here as App.jsx already checks for !user
-
-  return (
-    <div className="min-h-screen bg-gray-900">
-      <header className="bg-gray-800 shadow-sm border-b border-gray-700">
-        <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
-          <div className="flex justify-between items-center h-16">
-            <h1 className="text-2xl font-bold text-transparent bg-clip-text bg-gradient-to-r from-orange-500 to-amber-500">
-              JiggaBlend
-            </h1>
-            <div className="flex items-center gap-4">
-              <span className="text-gray-300">{user?.name || user?.email}</span>
-              <button
-                onClick={logout}
-                className="px-4 py-2 text-sm font-medium text-gray-200 bg-gray-700 border border-gray-600 rounded-lg hover:bg-gray-600 transition-colors"
-              >
-                Logout
-              </button>
-            </div>
-          </div>
-        </div>
-      </header>
-
-      <nav className="bg-gray-800 border-b border-gray-700">
-        <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
-          <div className="flex space-x-8">
-            <button
-              onClick={() => onTabChange('jobs')}
-              className={`py-4 px-1 border-b-2 font-medium text-sm transition-colors ${
-                activeTab === 'jobs'
-                  ? 'border-orange-500 text-orange-500'
-                  : 'border-transparent text-gray-400 hover:text-gray-300 hover:border-gray-600'
-              }`}
-            >
-              Jobs
-            </button>
-            <button
-              onClick={() => onTabChange('submit')}
-              className={`py-4 px-1 border-b-2 font-medium text-sm transition-colors ${
-                activeTab === 'submit'
-                  ? 'border-orange-500 text-orange-500'
-                  : 'border-transparent text-gray-400 hover:text-gray-300 hover:border-gray-600'
-              }`}
-            >
-              Submit Job
-            </button>
-            {isAdmin && (
-              <button
-                onClick={() => onTabChange('admin')}
-                className={`py-4 px-1 border-b-2 font-medium text-sm transition-colors ${
-                  activeTab === 'admin'
-                    ? 'border-orange-500 text-orange-500'
-                    : 'border-transparent text-gray-400 hover:text-gray-300 hover:border-gray-600'
-                }`}
-              >
-                Admin
-              </button>
-            )}
-          </div>
-        </div>
-      </nav>
-
-      <main className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
-        {children}
-      </main>
-    </div>
-  );
-}
-

web/src/components/LoadingSpinner.jsx

@@ -1,19 +0,0 @@
-import React from 'react';
-
-/**
- * Shared LoadingSpinner component with size variants
- */
-export default function LoadingSpinner({ size = 'md', className = '', borderColor = 'border-orange-500' }) {
-  const sizeClasses = {
-    sm: 'h-8 w-8',
-    md: 'h-12 w-12',
-    lg: 'h-16 w-16',
-  };
-
-  return (
-    <div className={`flex justify-center items-center ${className}`}>
-      <div className={`animate-spin rounded-full border-b-2 ${borderColor} ${sizeClasses[size]}`}></div>
-    </div>
-  );
-}
-

web/src/components/Login.jsx

@@ -1,277 +0,0 @@
-import { useState, useEffect } from 'react';
-import { auth } from '../utils/api';
-import ErrorMessage from './ErrorMessage';
-
-export default function Login() {
-  const [providers, setProviders] = useState({
-    google: false,
-    discord: false,
-    local: false,
-  });
-  const [showRegister, setShowRegister] = useState(false);
-  const [email, setEmail] = useState('');
-  const [name, setName] = useState('');
-  const [username, setUsername] = useState('');
-  const [password, setPassword] = useState('');
-  const [confirmPassword, setConfirmPassword] = useState('');
-  const [error, setError] = useState('');
-  const [loading, setLoading] = useState(false);
-
-  useEffect(() => {
-    checkAuthProviders();
-    // Check for registration disabled error in URL
-    const urlParams = new URLSearchParams(window.location.search);
-    if (urlParams.get('error') === 'registration_disabled') {
-      setError('Registration is currently disabled. Please contact an administrator.');
-    }
-  }, []);
-
-  const checkAuthProviders = async () => {
-    try {
-      const result = await auth.getProviders();
-      setProviders({
-        google: result.google || false,
-        discord: result.discord || false,
-        local: result.local || false,
-      });
-    } catch (error) {
-      // If endpoint fails, assume no providers are available
-      console.error('Failed to check auth providers:', error);
-      setProviders({ google: false, discord: false, local: false });
-    }
-  };
-
-  const handleLocalLogin = async (e) => {
-    e.preventDefault();
-    setError('');
-    setLoading(true);
-
-    try {
-      await auth.localLogin(username, password);
-      // Reload page to trigger auth check in App component
-      window.location.reload();
-    } catch (err) {
-      setError(err.message || 'Login failed');
-      setLoading(false);
-    }
-  };
-
-  const handleLocalRegister = async (e) => {
-    e.preventDefault();
-    setError('');
-
-    if (password !== confirmPassword) {
-      setError('Passwords do not match');
-      return;
-    }
-
-    if (password.length < 8) {
-      setError('Password must be at least 8 characters long');
-      return;
-    }
-
-    setLoading(true);
-
-    try {
-      await auth.localRegister(email, name, password);
-      // Reload page to trigger auth check in App component
-      window.location.reload();
-    } catch (err) {
-      setError(err.message || 'Registration failed');
-      setLoading(false);
-    }
-  };
-
-  return (
-    <div className="min-h-screen flex items-center justify-center bg-gray-900">
-      <div className="bg-gray-800 rounded-2xl shadow-2xl p-8 w-full max-w-md border border-gray-700">
-        <div className="text-center mb-8">
-          <h1 className="text-4xl font-bold text-transparent bg-clip-text bg-gradient-to-r from-orange-500 to-amber-500 mb-2">
-            JiggaBlend
-          </h1>
-          <p className="text-gray-400 text-lg">Blender Render Farm</p>
-        </div>
-        
-        <div className="space-y-4">
-          <ErrorMessage error={error} className="text-sm" />
-          {providers.local && (
-            <div className="pb-4 border-b border-gray-700">
-              <div className="flex gap-2 mb-4">
-                <button
-                  type="button"
-                  onClick={() => {
-                    setShowRegister(false);
-                    setError('');
-                  }}
-                  className={`flex-1 py-2 px-4 rounded-lg font-medium transition-colors ${
-                    !showRegister
-                      ? 'bg-orange-600 text-white'
-                      : 'bg-gray-700 text-gray-300 hover:bg-gray-600'
-                  }`}
-                >
-                  Login
-                </button>
-                <button
-                  type="button"
-                  onClick={() => {
-                    setShowRegister(true);
-                    setError('');
-                  }}
-                  className={`flex-1 py-2 px-4 rounded-lg font-medium transition-colors ${
-                    showRegister
-                      ? 'bg-orange-600 text-white'
-                      : 'bg-gray-700 text-gray-300 hover:bg-gray-600'
-                  }`}
-                >
-                  Register
-                </button>
-              </div>
-
-              {!showRegister ? (
-                <form onSubmit={handleLocalLogin} className="space-y-4">
-                  <div>
-                    <label htmlFor="username" className="block text-sm font-medium text-gray-300 mb-1">
-                      Email
-                    </label>
-                    <input
-                      id="username"
-                      type="email"
-                      value={username}
-                      onChange={(e) => setUsername(e.target.value)}
-                      required
-                      className="w-full px-4 py-2 bg-gray-900 border border-gray-600 rounded-lg text-gray-100 focus:ring-2 focus:ring-orange-500 focus:border-transparent placeholder-gray-500"
-                      placeholder="Enter your email"
-                    />
-                  </div>
-                  <div>
-                    <label htmlFor="password" className="block text-sm font-medium text-gray-300 mb-1">
-                      Password
-                    </label>
-                    <input
-                      id="password"
-                      type="password"
-                      value={password}
-                      onChange={(e) => setPassword(e.target.value)}
-                      required
-                      className="w-full px-4 py-2 bg-gray-900 border border-gray-600 rounded-lg text-gray-100 focus:ring-2 focus:ring-orange-500 focus:border-transparent placeholder-gray-500"
-                      placeholder="Enter password"
-                    />
-                  </div>
-                  <button
-                    type="submit"
-                    disabled={loading}
-                    className="w-full bg-orange-600 text-white font-semibold py-3 px-6 rounded-lg hover:bg-orange-500 transition-all duration-200 shadow-lg disabled:opacity-50 disabled:cursor-not-allowed"
-                  >
-                    {loading ? 'Logging in...' : 'Login'}
-                  </button>
-                </form>
-              ) : (
-                <form onSubmit={handleLocalRegister} className="space-y-4">
-                  <div>
-                    <label htmlFor="reg-email" className="block text-sm font-medium text-gray-300 mb-1">
-                      Email
-                    </label>
-                    <input
-                      id="reg-email"
-                      type="email"
-                      value={email}
-                      onChange={(e) => setEmail(e.target.value)}
-                      required
-                      className="w-full px-4 py-2 bg-gray-900 border border-gray-600 rounded-lg text-gray-100 focus:ring-2 focus:ring-orange-500 focus:border-transparent placeholder-gray-500"
-                      placeholder="Enter your email"
-                    />
-                  </div>
-                  <div>
-                    <label htmlFor="reg-name" className="block text-sm font-medium text-gray-300 mb-1">
-                      Name
-                    </label>
-                    <input
-                      id="reg-name"
-                      type="text"
-                      value={name}
-                      onChange={(e) => setName(e.target.value)}
-                      required
-                      className="w-full px-4 py-2 bg-gray-900 border border-gray-600 rounded-lg text-gray-100 focus:ring-2 focus:ring-orange-500 focus:border-transparent placeholder-gray-500"
-                      placeholder="Enter your name"
-                    />
-                  </div>
-                  <div>
-                    <label htmlFor="reg-password" className="block text-sm font-medium text-gray-300 mb-1">
-                      Password
-                    </label>
-                    <input
-                      id="reg-password"
-                      type="password"
-                      value={password}
-                      onChange={(e) => setPassword(e.target.value)}
-                      required
-                      minLength={8}
-                      className="w-full px-4 py-2 bg-gray-900 border border-gray-600 rounded-lg text-gray-100 focus:ring-2 focus:ring-orange-500 focus:border-transparent placeholder-gray-500"
-                      placeholder="At least 8 characters"
-                    />
-                  </div>
-                  <div>
-                    <label htmlFor="reg-confirm-password" className="block text-sm font-medium text-gray-300 mb-1">
-                      Confirm Password
-                    </label>
-                    <input
-                      id="reg-confirm-password"
-                      type="password"
-                      value={confirmPassword}
-                      onChange={(e) => setConfirmPassword(e.target.value)}
-                      required
-                      minLength={8}
-                      className="w-full px-4 py-2 bg-gray-900 border border-gray-600 rounded-lg text-gray-100 focus:ring-2 focus:ring-orange-500 focus:border-transparent placeholder-gray-500"
-                      placeholder="Confirm password"
-                    />
-                  </div>
-                  <button
-                    type="submit"
-                    disabled={loading}
-                    className="w-full bg-orange-600 text-white font-semibold py-3 px-6 rounded-lg hover:bg-orange-500 transition-all duration-200 shadow-lg disabled:opacity-50 disabled:cursor-not-allowed"
-                  >
-                    {loading ? 'Registering...' : 'Register'}
-                  </button>
-                </form>
-              )}
-            </div>
-          )}
-          
-          {providers.google && (
-            <a
-              href="/api/auth/google/login"
-              className="w-full flex items-center justify-center gap-3 bg-gray-700 border-2 border-gray-600 text-gray-200 font-semibold py-3 px-6 rounded-lg hover:bg-gray-600 hover:border-gray-500 transition-all duration-200 shadow-sm"
-            >
-              <svg className="w-5 h-5" viewBox="0 0 24 24">
-                <path fill="#4285F4" d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92c-.26 1.37-1.04 2.53-2.21 3.31v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.09z"/>
-                <path fill="#34A853" d="M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z"/>
-                <path fill="#FBBC05" d="M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l2.85-2.22.81-.62z"/>
-                <path fill="#EA4335" d="M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.99 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z"/>
-              </svg>
-              Continue with Google
-            </a>
-          )}
-          
-          {providers.discord && (
-            <a
-              href="/api/auth/discord/login"
-              className="w-full flex items-center justify-center gap-3 bg-[#5865F2] text-white font-semibold py-3 px-6 rounded-lg hover:bg-[#4752C4] transition-all duration-200 shadow-lg"
-            >
-              <svg className="w-5 h-5" fill="currentColor" viewBox="0 0 24 24">
-                <path d="M20.317 4.37a19.791 19.791 0 0 0-4.885-1.515a.074.074 0 0 0-.079.037c-.21.375-.444.864-.608 1.25a18.27 18.27 0 0 0-5.487 0a12.64 12.64 0 0 0-.617-1.25a.077.077 0 0 0-.079-.037A19.736 19.736 0 0 0 3.677 4.37a.07.07 0 0 0-.032.027C.533 9.046-.32 13.58.099 18.057a.082.082 0 0 0 .031.057a19.9 19.9 0 0 0 5.993 3.03a.078.078 0 0 0 .084-.028a14.09 14.09 0 0 0 1.226-1.994a.076.076 0 0 0-.041-.106a13.107 13.107 0 0 1-1.872-.892a.077.077 0 0 1-.008-.128a10.2 10.2 0 0 0 .372-.292a.074.074 0 0 1 .077-.01c3.928 1.793 8.18 1.793 12.062 0a.074.074 0 0 1 .078.01c.12.098.246.198.373.292a.077.077 0 0 1-.006.127a12.299 12.299 0 0 1-1.873.892a.077.077 0 0 0-.041.107c.36.698.772 1.362 1.225 1.993a.076.076 0 0 0 .084.028a19.839 19.839 0 0 0 6.002-3.03a.077.077 0 0 0 .032-.054c.5-5.177-.838-9.674-3.549-13.66a.061.061 0 0 0-.031-.03zM8.02 15.33c-1.183 0-2.157-1.085-2.157-2.419c0-1.333.956-2.419 2.157-2.419c1.21 0 2.176 1.096 2.157 2.42c0 1.333-.956 2.418-2.157 2.418zm7.975 0c-1.183 0-2.157-1.085-2.157-2.419c0-1.333.955-2.419 2.157-2.419c1.21 0 2.176 1.096 2.157 2.42c0 1.333-.946 2.418-2.157 2.418z"/>
-              </svg>
-              Continue with Discord
-            </a>
-          )}
-          
-          {!providers.google && !providers.discord && !providers.local && (
-            <div className="p-4 bg-yellow-400/20 border border-yellow-400/50 rounded-lg text-yellow-400 text-sm text-center">
-              No authentication methods are configured. Please contact an administrator.
-            </div>
-          )}
-        </div>
-      </div>
-    </div>
-  );
-}
-

web/src/components/PasswordChange.jsx

@@ -1,137 +0,0 @@
-import { useState } from 'react';
-import { auth } from '../utils/api';
-import ErrorMessage from './ErrorMessage';
-import { useAuth } from '../hooks/useAuth';
-
-export default function PasswordChange({ targetUserId = null, targetUserName = null, onSuccess }) {
-  const { user } = useAuth();
-  const [oldPassword, setOldPassword] = useState('');
-  const [newPassword, setNewPassword] = useState('');
-  const [confirmPassword, setConfirmPassword] = useState('');
-  const [error, setError] = useState('');
-  const [success, setSuccess] = useState('');
-  const [loading, setLoading] = useState(false);
-
-  const isAdmin = user?.is_admin || false;
-  const isChangingOtherUser = targetUserId !== null && isAdmin;
-
-  const handleSubmit = async (e) => {
-    e.preventDefault();
-    setError('');
-    setSuccess('');
-
-    if (newPassword !== confirmPassword) {
-      setError('New passwords do not match');
-      return;
-    }
-
-    if (newPassword.length < 8) {
-      setError('Password must be at least 8 characters long');
-      return;
-    }
-
-    if (!isChangingOtherUser && !oldPassword) {
-      setError('Old password is required');
-      return;
-    }
-
-    setLoading(true);
-
-    try {
-      await auth.changePassword(
-        isChangingOtherUser ? null : oldPassword,
-        newPassword,
-        isChangingOtherUser ? targetUserId : null
-      );
-      setSuccess('Password changed successfully');
-      setOldPassword('');
-      setNewPassword('');
-      setConfirmPassword('');
-      if (onSuccess) {
-        setTimeout(() => {
-          onSuccess();
-        }, 1500);
-      }
-    } catch (err) {
-      setError(err.message || 'Failed to change password');
-    } finally {
-      setLoading(false);
-    }
-  };
-
-  return (
-    <div className="bg-gray-800 rounded-lg shadow-md p-6 border border-gray-700">
-      <h2 className="text-xl font-semibold mb-4 text-gray-100">
-        {isChangingOtherUser ? `Change Password for ${targetUserName || 'User'}` : 'Change Password'}
-      </h2>
-
-      <ErrorMessage error={error} className="mb-4 text-sm" />
-
-      {success && (
-        <div className="mb-4 p-3 bg-green-400/20 border border-green-400/50 rounded-lg text-green-400 text-sm">
-          {success}
-        </div>
-      )}
-
-      <form onSubmit={handleSubmit} className="space-y-4">
-        {!isChangingOtherUser && (
-          <div>
-            <label htmlFor="old-password" className="block text-sm font-medium text-gray-300 mb-1">
-              Current Password
-            </label>
-            <input
-              id="old-password"
-              type="password"
-              value={oldPassword}
-              onChange={(e) => setOldPassword(e.target.value)}
-              required
-              className="w-full px-4 py-2 bg-gray-900 border border-gray-600 rounded-lg text-gray-100 focus:ring-2 focus:ring-orange-500 focus:border-transparent"
-              placeholder="Enter current password"
-            />
-          </div>
-        )}
-
-        <div>
-          <label htmlFor="new-password" className="block text-sm font-medium text-gray-300 mb-1">
-            New Password
-          </label>
-          <input
-            id="new-password"
-            type="password"
-            value={newPassword}
-            onChange={(e) => setNewPassword(e.target.value)}
-            required
-            minLength={8}
-            className="w-full px-4 py-2 bg-gray-900 border border-gray-600 rounded-lg text-gray-100 focus:ring-2 focus:ring-orange-500 focus:border-transparent"
-            placeholder="At least 8 characters"
-          />
-        </div>
-
-        <div>
-          <label htmlFor="confirm-password" className="block text-sm font-medium text-gray-300 mb-1">
-            Confirm New Password
-          </label>
-          <input
-            id="confirm-password"
-            type="password"
-            value={confirmPassword}
-            onChange={(e) => setConfirmPassword(e.target.value)}
-            required
-            minLength={8}
-            className="w-full px-4 py-2 bg-gray-900 border border-gray-600 rounded-lg text-gray-100 focus:ring-2 focus:ring-orange-500 focus:border-transparent"
-            placeholder="Confirm new password"
-          />
-        </div>
-
-        <button
-          type="submit"
-          disabled={loading}
-          className="w-full bg-orange-600 text-white font-semibold py-2 px-4 rounded-lg hover:bg-orange-500 transition-colors disabled:opacity-50 disabled:cursor-not-allowed"
-        >
-          {loading ? 'Changing Password...' : 'Change Password'}
-        </button>
-      </form>
-    </div>
-  );
-}
-

web/src/components/UserJobs.jsx

@@ -1,179 +0,0 @@
-import { useState, useEffect, useRef } from 'react';
-import { admin, normalizeArrayResponse } from '../utils/api';
-import { wsManager } from '../utils/websocket';
-import JobDetails from './JobDetails';
-import LoadingSpinner from './LoadingSpinner';
-
-export default function UserJobs({ userId, userName, onBack }) {
-  const [jobList, setJobList] = useState([]);
-  const [loading, setLoading] = useState(true);
-  const [selectedJob, setSelectedJob] = useState(null);
-  const listenerIdRef = useRef(null);
-
-  useEffect(() => {
-    loadJobs();
-    // Use shared WebSocket manager for real-time updates instead of polling
-    listenerIdRef.current = wsManager.subscribe(`userjobs_${userId}`, {
-      open: () => {
-        console.log('UserJobs: Shared WebSocket connected');
-        loadJobs();
-      },
-      message: (data) => {
-        // Handle jobs channel messages (always broadcasted)
-        if (data.channel === 'jobs') {
-          if (data.type === 'job_update' && data.data) {
-            // Update job in list if it belongs to this user
-            setJobList(prev => {
-              const prevArray = Array.isArray(prev) ? prev : [];
-              const index = prevArray.findIndex(j => j.id === data.job_id);
-              if (index >= 0) {
-                const updated = [...prevArray];
-                updated[index] = { ...updated[index], ...data.data };
-                return updated;
-              }
-              // If job not in current list, reload to get updated list
-              if (data.data.status === 'completed' || data.data.status === 'failed') {
-                loadJobs();
-              }
-              return prevArray;
-            });
-          } else if (data.type === 'job_created' && data.data) {
-            // New job created - reload to check if it belongs to this user
-            loadJobs();
-          }
-        }
-      },
-      error: (error) => {
-        console.error('UserJobs: Shared WebSocket error:', error);
-      },
-      close: (event) => {
-        console.log('UserJobs: Shared WebSocket closed:', event);
-      }
-    });
-
-    // Ensure connection is established
-    wsManager.connect();
-
-    return () => {
-      if (listenerIdRef.current) {
-        wsManager.unsubscribe(listenerIdRef.current);
-        listenerIdRef.current = null;
-      }
-    };
-  }, [userId]);
-
-  const loadJobs = async () => {
-    try {
-      const data = await admin.getUserJobs(userId);
-      setJobList(normalizeArrayResponse(data));
-    } catch (error) {
-      console.error('Failed to load jobs:', error);
-      setJobList([]);
-    } finally {
-      setLoading(false);
-    }
-  };
-
-  const getStatusColor = (status) => {
-    const colors = {
-      pending: 'bg-yellow-400/20 text-yellow-400',
-      running: 'bg-orange-400/20 text-orange-400',
-      completed: 'bg-green-400/20 text-green-400',
-      failed: 'bg-red-400/20 text-red-400',
-      cancelled: 'bg-gray-500/20 text-gray-400',
-    };
-    return colors[status] || colors.pending;
-  };
-
-  if (selectedJob) {
-    return (
-      <JobDetails
-        job={selectedJob}
-        onClose={() => setSelectedJob(null)}
-        onUpdate={loadJobs}
-      />
-    );
-  }
-
-  if (loading) {
-    return <LoadingSpinner size="md" className="h-64" />;
-  }
-
-  return (
-    <div className="space-y-6">
-      <div className="flex items-center justify-between">
-        <div>
-          <button
-            onClick={onBack}
-            className="text-gray-400 hover:text-gray-300 mb-2 flex items-center gap-2"
-          >
-            <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 19l-7-7 7-7" />
-            </svg>
-            Back to Users
-          </button>
-          <h2 className="text-2xl font-bold text-gray-100">Jobs for {userName}</h2>
-        </div>
-      </div>
-
-      {jobList.length === 0 ? (
-        <div className="text-center py-12">
-          <p className="text-gray-400 text-lg">No jobs found for this user.</p>
-        </div>
-      ) : (
-        <div className="grid gap-6">
-          {jobList.map((job) => (
-            <div
-              key={job.id}
-              className="bg-gray-800 rounded-lg shadow-md hover:shadow-lg transition-shadow p-6 border-l-4 border-orange-500 border border-gray-700"
-            >
-              <div className="flex justify-between items-start mb-4">
-                <div>
-                  <h3 className="text-xl font-semibold text-gray-100 mb-1">{job.name}</h3>
-                  <p className="text-sm text-gray-400">
-                    {job.job_type === 'render' && job.frame_start !== null && job.frame_end !== null
-                      ? `Frames ${job.frame_start}-${job.frame_end}`
-                      : 'Metadata extraction'}
-                  </p>
-                </div>
-                <span
-                  className={`px-3 py-1 text-sm font-medium rounded-full ${getStatusColor(job.status)}`}
-                >
-                  {job.status}
-                </span>
-              </div>
-
-              {job.status === 'running' && (
-                <div className="mb-4">
-                  <div className="flex justify-between text-sm text-gray-400 mb-1">
-                    <span>Progress</span>
-                    <span>{Math.round(job.progress)}%</span>
-                  </div>
-                  <div className="w-full bg-gray-700 rounded-full h-2">
-                    <div
-                      className="bg-orange-500 h-2 rounded-full transition-all duration-300"
-                      style={{ width: `${job.progress}%` }}
-                    ></div>
-                  </div>
-                </div>
-              )}
-
-              <div className="flex items-center justify-between">
-                <div className="text-sm text-gray-400">
-                  Created: {new Date(job.created_at).toLocaleString()}
-                </div>
-                <button
-                  onClick={() => setSelectedJob(job)}
-                  className="px-4 py-2 bg-orange-600 text-white rounded-lg hover:bg-orange-500 transition-colors font-medium"
-                >
-                  View Details
-                </button>
-              </div>
-            </div>
-          ))}
-        </div>
-      )}
-    </div>
-  );
-}
-

web/src/components/VideoPlayer.jsx

@@ -1,90 +0,0 @@
-import { useState, useRef, useEffect } from 'react';
-import ErrorMessage from './ErrorMessage';
-import LoadingSpinner from './LoadingSpinner';
-
-export default function VideoPlayer({ videoUrl, onClose }) {
-  const videoRef = useRef(null);
-  const [loading, setLoading] = useState(true);
-  const [error, setError] = useState(null);
-
-  useEffect(() => {
-    const video = videoRef.current;
-    if (!video || !videoUrl) return;
-
-    const handleCanPlay = () => {
-      setLoading(false);
-    };
-
-    const handleError = (e) => {
-      console.error('Video playback error:', e, video.error);
-      // Get more detailed error information
-      let errorMsg = 'Failed to load video';
-      if (video.error) {
-        switch (video.error.code) {
-          case video.error.MEDIA_ERR_ABORTED:
-            errorMsg = 'Video loading aborted';
-            break;
-          case video.error.MEDIA_ERR_NETWORK:
-            errorMsg = 'Network error while loading video';
-            break;
-          case video.error.MEDIA_ERR_DECODE:
-            errorMsg = 'Video decoding error';
-            break;
-          case video.error.MEDIA_ERR_SRC_NOT_SUPPORTED:
-            errorMsg = 'Video format not supported';
-            break;
-        }
-      }
-      setError(errorMsg);
-      setLoading(false);
-    };
-
-    const handleLoadStart = () => {
-      setLoading(true);
-      setError(null);
-    };
-
-    video.addEventListener('canplay', handleCanPlay);
-    video.addEventListener('error', handleError);
-    video.addEventListener('loadstart', handleLoadStart);
-
-    return () => {
-      video.removeEventListener('canplay', handleCanPlay);
-      video.removeEventListener('error', handleError);
-      video.removeEventListener('loadstart', handleLoadStart);
-    };
-  }, [videoUrl]);
-
-  if (error) {
-    return (
-      <div>
-        <ErrorMessage error={error} />
-        <div className="mt-2 text-sm text-gray-400">
-          <a href={videoUrl} download className="text-orange-400 hover:text-orange-300 underline">Download video instead</a>
-        </div>
-      </div>
-    );
-  }
-
-  return (
-    <div className="relative bg-black rounded-lg overflow-hidden">
-      {loading && (
-        <div className="absolute inset-0 flex items-center justify-center bg-black bg-opacity-50 z-10">
-          <LoadingSpinner size="lg" className="border-white" />
-        </div>
-      )}
-      <video
-        ref={videoRef}
-        src={videoUrl}
-        controls
-        className="w-full"
-        onLoadedData={() => setLoading(false)}
-        preload="metadata"
-      >
-        Your browser does not support the video tag.
-        <a href={videoUrl} download>Download the video</a>
-      </video>
-    </div>
-  );
-}
-

web/src/hooks/useAuth.js

@@ -1,88 +0,0 @@
-import { useState, useEffect, useRef } from 'react';
-import { auth, setAuthErrorHandler } from '../utils/api';
-
-export function useAuth() {
-  const [user, setUser] = useState(null);
-  const [loading, setLoading] = useState(true);
-  const userRef = useRef(user);
-
-  // Keep userRef in sync with user state
-  useEffect(() => {
-    userRef.current = user;
-  }, [user]);
-
-  const checkAuth = async () => {
-    try {
-      const userData = await auth.getMe();
-      setUser(userData);
-      setLoading(false);
-      return userData; // Return user data for verification
-    } catch (error) {
-      // If 401/403, user is not authenticated
-      // Check if it's an auth error
-      if (error.message && (error.message.includes('Unauthorized') || error.message.includes('401') || error.message.includes('403'))) {
-        setUser(null);
-        setLoading(false);
-        throw error; // Re-throw to allow caller to handle
-      } else {
-        // Other errors (network, etc.) - don't log out, just re-throw
-        // This prevents network issues from logging users out
-        setLoading(false);
-        throw error; // Re-throw to allow caller to handle
-      }
-    }
-  };
-
-  const logout = async () => {
-    try {
-      await auth.logout();
-    } catch (error) {
-      console.error('Logout error:', error);
-    } finally {
-      // Refresh the page to show login
-      window.location.reload();
-    }
-  };
-
-  useEffect(() => {
-    // Set up global auth error handler
-    setAuthErrorHandler(() => {
-      setUser(null);
-      setLoading(false);
-    });
-
-    // Listen for auth errors from API calls
-    const handleAuthErrorEvent = () => {
-      setUser(null);
-      setLoading(false);
-    };
-    window.addEventListener('auth-error', handleAuthErrorEvent);
-
-    // Initial auth check
-    checkAuth();
-
-    // Periodic auth check every 10 seconds
-    const authInterval = setInterval(() => {
-      // Use ref to check current user state without dependency
-      if (userRef.current) {
-        // Only check if we have a user (don't spam when logged out)
-        checkAuth().catch((error) => {
-          // Only log out if it's actually an auth error, not a network error
-          // Network errors shouldn't log the user out
-          if (error.message && (error.message.includes('Unauthorized') || error.message.includes('401') || error.message.includes('403'))) {
-            // This is a real auth error - user will be set to null by checkAuth
-          }
-          // For other errors (network, etc.), don't log out - just silently fail
-        });
-      }
-    }, 10000); // 10 seconds
-
-    return () => {
-      window.removeEventListener('auth-error', handleAuthErrorEvent);
-      clearInterval(authInterval);
-    };
-  }, []); // Empty deps - only run on mount/unmount
-
-  return { user, loading, logout, refresh: checkAuth };
-}
-

web/src/main.jsx

@@ -1,10 +0,0 @@
-import React from 'react'
-import ReactDOM from 'react-dom/client'
-import App from './App.jsx'
-
-ReactDOM.createRoot(document.getElementById('root')).render(
-  <React.StrictMode>
-    <App />
-  </React.StrictMode>,
-)
-

web/src/styles/index.css

@@ -1,14 +0,0 @@
-@tailwind base;
-@tailwind components;
-@tailwind utilities;
-
-body {
-  margin: 0;
-  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
-    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
-    sans-serif;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-  @apply bg-gray-900 text-gray-100;
-}
-

web/src/utils/api.js

@@ -1,552 +0,0 @@
-const API_BASE = '/api';
-
-// Global auth error handler - will be set by useAuth hook
-let onAuthError = null;
-
-// Request debouncing and deduplication
-const pendingRequests = new Map(); // key: endpoint+params, value: Promise
-const requestQueue = new Map(); // key: endpoint+params, value: { resolve, reject, timestamp }
-const DEBOUNCE_DELAY = 100; // 100ms debounce delay
-const DEDUPE_WINDOW = 5000; // 5 seconds - same request within this window uses cached promise
-
-// Generate cache key from endpoint and params
-function getCacheKey(endpoint, options = {}) {
-  const params = new URLSearchParams();
-  Object.keys(options).sort().forEach(key => {
-    if (options[key] !== undefined && options[key] !== null) {
-      params.append(key, String(options[key]));
-    }
-  });
-  const query = params.toString();
-  return `${endpoint}${query ? '?' + query : ''}`;
-}
-
-// Utility function to normalize array responses (handles both old and new formats)
-export function normalizeArrayResponse(response) {
-  const data = response?.data || response;
-  return Array.isArray(data) ? data : [];
-}
-
-// Sentinel value to indicate a request was superseded (instead of rejecting)
-// Export it so components can check for it
-export const REQUEST_SUPERSEDED = Symbol('REQUEST_SUPERSEDED');
-
-// Debounced request wrapper
-function debounceRequest(key, requestFn, delay = DEBOUNCE_DELAY) {
-  return new Promise((resolve, reject) => {
-    // Check if there's a pending request for this key
-    if (pendingRequests.has(key)) {
-      const pending = pendingRequests.get(key);
-      // If request is very recent (within dedupe window), reuse it
-      const now = Date.now();
-      if (pending.timestamp && (now - pending.timestamp) < DEDUPE_WINDOW) {
-        pending.promise.then(resolve).catch(reject);
-        return;
-      } else {
-        // Request is older than dedupe window - remove it and create new one
-        pendingRequests.delete(key);
-      }
-    }
-
-    // Clear any existing timeout for this key
-    if (requestQueue.has(key)) {
-      const queued = requestQueue.get(key);
-      clearTimeout(queued.timeout);
-      // Resolve with sentinel value instead of rejecting - this prevents errors from propagating
-      // The new request will handle the actual response
-      queued.resolve(REQUEST_SUPERSEDED);
-    }
-
-    // Queue new request
-    const timeout = setTimeout(() => {
-      requestQueue.delete(key);
-      const promise = requestFn();
-      const timestamp = Date.now();
-      pendingRequests.set(key, { promise, timestamp });
-      
-      promise
-        .then(result => {
-          pendingRequests.delete(key);
-          resolve(result);
-        })
-        .catch(error => {
-          pendingRequests.delete(key);
-          reject(error);
-        });
-    }, delay);
-
-    requestQueue.set(key, { resolve, reject, timeout });
-  });
-}
-
-export const setAuthErrorHandler = (handler) => {
-  onAuthError = handler;
-};
-
-// Whitelist of endpoints that should NOT trigger auth error handling
-// These are endpoints that can legitimately return 401/403 without meaning the user is logged out
-const AUTH_CHECK_ENDPOINTS = ['/auth/me', '/auth/logout'];
-
-const handleAuthError = (response, endpoint) => {
-  if (response.status === 401 || response.status === 403) {
-    // Don't trigger auth error handler for endpoints that check auth status
-    if (AUTH_CHECK_ENDPOINTS.includes(endpoint)) {
-      return;
-    }
-    // Trigger auth error handler if set (this will clear user state)
-    if (onAuthError) {
-      onAuthError();
-    }
-    // Force a re-check of auth status to ensure login is shown
-    // This ensures the App component re-renders with user=null
-    if (typeof window !== 'undefined') {
-      // Dispatch a custom event that useAuth can listen to
-      window.dispatchEvent(new CustomEvent('auth-error'));
-    }
-  }
-};
-
-// Extract error message from response - centralized to avoid duplication
-async function extractErrorMessage(response) {
-  try {
-    const errorData = await response.json();
-    return errorData?.error || response.statusText;
-  } catch {
-    return response.statusText;
-  }
-}
-
-export const api = {
-  async get(endpoint, options = {}) {
-    const abortController = options.signal || new AbortController();
-    const response = await fetch(`${API_BASE}${endpoint}`, {
-      credentials: 'include', // Include cookies for session
-      signal: abortController.signal,
-    });
-    if (!response.ok) {
-      // Handle auth errors before parsing response
-      handleAuthError(response, endpoint);
-      const errorMessage = await extractErrorMessage(response);
-      throw new Error(errorMessage);
-    }
-    return response.json();
-  },
-
-  async post(endpoint, data, options = {}) {
-    const abortController = options.signal || new AbortController();
-    const response = await fetch(`${API_BASE}${endpoint}`, {
-      method: 'POST',
-      headers: { 'Content-Type': 'application/json' },
-      body: JSON.stringify(data),
-      credentials: 'include', // Include cookies for session
-      signal: abortController.signal,
-    });
-    if (!response.ok) {
-      // Handle auth errors before parsing response
-      handleAuthError(response, endpoint);
-      const errorMessage = await extractErrorMessage(response);
-      throw new Error(errorMessage);
-    }
-    return response.json();
-  },
-
-  async patch(endpoint, data, options = {}) {
-    const abortController = options.signal || new AbortController();
-    const response = await fetch(`${API_BASE}${endpoint}`, {
-      method: 'PATCH',
-      headers: { 'Content-Type': 'application/json' },
-      body: data ? JSON.stringify(data) : undefined,
-      credentials: 'include', // Include cookies for session
-      signal: abortController.signal,
-    });
-    if (!response.ok) {
-      // Handle auth errors before parsing response
-      handleAuthError(response, endpoint);
-      const errorMessage = await extractErrorMessage(response);
-      throw new Error(errorMessage);
-    }
-    return response.json();
-  },
-
-  async delete(endpoint, options = {}) {
-    const abortController = options.signal || new AbortController();
-    const response = await fetch(`${API_BASE}${endpoint}`, {
-      method: 'DELETE',
-      credentials: 'include', // Include cookies for session
-      signal: abortController.signal,
-    });
-    if (!response.ok) {
-      // Handle auth errors before parsing response
-      handleAuthError(response, endpoint);
-      const errorMessage = await extractErrorMessage(response);
-      throw new Error(errorMessage);
-    }
-    return response.json();
-  },
-
-  async uploadFile(endpoint, file, onProgress, mainBlendFile) {
-    return new Promise((resolve, reject) => {
-      const formData = new FormData();
-      formData.append('file', file);
-      if (mainBlendFile) {
-        formData.append('main_blend_file', mainBlendFile);
-      }
-
-      const xhr = new XMLHttpRequest();
-
-      // Track upload progress
-      if (onProgress) {
-        xhr.upload.addEventListener('progress', (e) => {
-          if (e.lengthComputable) {
-            const percentComplete = (e.loaded / e.total) * 100;
-            onProgress(percentComplete);
-          }
-        });
-      }
-
-      xhr.addEventListener('load', () => {
-        if (xhr.status >= 200 && xhr.status < 300) {
-          try {
-            const response = JSON.parse(xhr.responseText);
-            resolve(response);
-          } catch (err) {
-            resolve(xhr.responseText);
-          }
-        } else {
-          // Handle auth errors
-          if (xhr.status === 401 || xhr.status === 403) {
-            handleAuthError({ status: xhr.status }, endpoint);
-          }
-          try {
-            const errorData = JSON.parse(xhr.responseText);
-            reject(new Error(errorData.error || xhr.statusText));
-          } catch {
-            reject(new Error(xhr.statusText));
-          }
-        }
-      });
-
-      xhr.addEventListener('error', () => {
-        reject(new Error('Upload failed'));
-      });
-
-      xhr.addEventListener('abort', () => {
-        reject(new Error('Upload aborted'));
-      });
-
-      xhr.open('POST', `${API_BASE}${endpoint}`);
-      xhr.withCredentials = true; // Include cookies for session
-      xhr.send(formData);
-    });
-  },
-};
-
-export const auth = {
-  async getMe() {
-    return api.get('/auth/me');
-  },
-
-  async logout() {
-    return api.post('/auth/logout');
-  },
-
-  async getProviders() {
-    return api.get('/auth/providers');
-  },
-
-  async isLocalLoginAvailable() {
-    return api.get('/auth/local/available');
-  },
-
-  async localRegister(email, name, password) {
-    return api.post('/auth/local/register', { email, name, password });
-  },
-
-  async localLogin(username, password) {
-    return api.post('/auth/local/login', { username, password });
-  },
-
-  async changePassword(oldPassword, newPassword, targetUserId = null) {
-    const body = { old_password: oldPassword, new_password: newPassword };
-    if (targetUserId !== null) {
-      body.target_user_id = targetUserId;
-    }
-    return api.post('/auth/change-password', body);
-  },
-};
-
-export const jobs = {
-  async list(options = {}) {
-    const key = getCacheKey('/jobs', options);
-    return debounceRequest(key, () => {
-      const params = new URLSearchParams();
-      if (options.limit) params.append('limit', options.limit.toString());
-      if (options.offset) params.append('offset', options.offset.toString());
-      if (options.status) params.append('status', options.status);
-      if (options.sort) params.append('sort', options.sort);
-      const query = params.toString();
-      return api.get(`/jobs${query ? '?' + query : ''}`);
-    });
-  },
-
-  async listSummary(options = {}) {
-    const key = getCacheKey('/jobs/summary', options);
-    return debounceRequest(key, () => {
-      const params = new URLSearchParams();
-      if (options.limit) params.append('limit', options.limit.toString());
-      if (options.offset) params.append('offset', options.offset.toString());
-      if (options.status) params.append('status', options.status);
-      if (options.sort) params.append('sort', options.sort);
-      const query = params.toString();
-      return api.get(`/jobs/summary${query ? '?' + query : ''}`, options);
-    });
-  },
-
-  async get(id, options = {}) {
-    const key = getCacheKey(`/jobs/${id}`, options);
-    return debounceRequest(key, async () => {
-      if (options.etag) {
-        // Include ETag in request headers for conditional requests
-        const headers = { 'If-None-Match': options.etag };
-        const response = await fetch(`${API_BASE}/jobs/${id}`, {
-          credentials: 'include',
-          headers,
-        });
-        if (response.status === 304) {
-          return null; // Not modified
-        }
-        if (!response.ok) {
-          const errorData = await response.json().catch(() => null);
-          throw new Error(errorData?.error || response.statusText);
-        }
-        return response.json();
-      }
-      return api.get(`/jobs/${id}`, options);
-    });
-  },
-
-  async create(jobData) {
-    return api.post('/jobs', jobData);
-  },
-
-  async cancel(id) {
-    return api.delete(`/jobs/${id}`);
-  },
-
-  async delete(id) {
-    return api.post(`/jobs/${id}/delete`);
-  },
-
-  async uploadFile(jobId, file, onProgress, mainBlendFile) {
-    return api.uploadFile(`/jobs/${jobId}/upload`, file, onProgress, mainBlendFile);
-  },
-
-  async uploadFileForJobCreation(file, onProgress, mainBlendFile) {
-    return api.uploadFile(`/jobs/upload`, file, onProgress, mainBlendFile);
-  },
-
-  async getFiles(jobId, options = {}) {
-    const key = getCacheKey(`/jobs/${jobId}/files`, options);
-    return debounceRequest(key, () => {
-      const params = new URLSearchParams();
-      if (options.limit) params.append('limit', options.limit.toString());
-      if (options.offset) params.append('offset', options.offset.toString());
-      if (options.file_type) params.append('file_type', options.file_type);
-      if (options.extension) params.append('extension', options.extension);
-      const query = params.toString();
-      return api.get(`/jobs/${jobId}/files${query ? '?' + query : ''}`, options);
-    });
-  },
-
-  async getFilesCount(jobId, options = {}) {
-    const key = getCacheKey(`/jobs/${jobId}/files/count`, options);
-    return debounceRequest(key, () => {
-      const params = new URLSearchParams();
-      if (options.file_type) params.append('file_type', options.file_type);
-      const query = params.toString();
-      return api.get(`/jobs/${jobId}/files/count${query ? '?' + query : ''}`);
-    });
-  },
-
-  async getContextArchive(jobId, options = {}) {
-    return api.get(`/jobs/${jobId}/context`, options);
-  },
-
-  downloadFile(jobId, fileId) {
-    return `${API_BASE}/jobs/${jobId}/files/${fileId}/download`;
-  },
-
-  previewEXR(jobId, fileId) {
-    return `${API_BASE}/jobs/${jobId}/files/${fileId}/preview-exr`;
-  },
-
-  getVideoUrl(jobId) {
-    return `${API_BASE}/jobs/${jobId}/video`;
-  },
-
-  async getTaskLogs(jobId, taskId, options = {}) {
-    const key = getCacheKey(`/jobs/${jobId}/tasks/${taskId}/logs`, options);
-    return debounceRequest(key, async () => {
-      const params = new URLSearchParams();
-      if (options.stepName) params.append('step_name', options.stepName);
-      if (options.logLevel) params.append('log_level', options.logLevel);
-      if (options.limit) params.append('limit', options.limit.toString());
-      if (options.sinceId) params.append('since_id', options.sinceId.toString());
-      const query = params.toString();
-      const result = await api.get(`/jobs/${jobId}/tasks/${taskId}/logs${query ? '?' + query : ''}`, options);
-      // Handle both old format (array) and new format (object with logs, last_id, limit)
-      if (Array.isArray(result)) {
-        return { logs: result, last_id: result.length > 0 ? result[result.length - 1].id : 0, limit: options.limit || 100 };
-      }
-      return result;
-    });
-  },
-
-  async getTaskSteps(jobId, taskId, options = {}) {
-    return api.get(`/jobs/${jobId}/tasks/${taskId}/steps`, options);
-  },
-
-  // New unified client WebSocket - DEPRECATED: Use wsManager from websocket.js instead
-  // This is kept for backwards compatibility but should not be used
-  streamClientWebSocket() {
-    console.warn('streamClientWebSocket() is deprecated - use wsManager from websocket.js instead');
-    const wsProtocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
-    const wsHost = window.location.host;
-    const url = `${wsProtocol}//${wsHost}${API_BASE}/ws`;
-    return new WebSocket(url);
-  },
-
-  // Old WebSocket methods (to be removed after migration)
-  streamTaskLogsWebSocket(jobId, taskId, lastId = 0) {
-    // Convert HTTP to WebSocket URL
-    const wsProtocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
-    const wsHost = window.location.host;
-    const url = `${wsProtocol}//${wsHost}${API_BASE}/jobs/${jobId}/tasks/${taskId}/logs/ws?last_id=${lastId}`;
-    return new WebSocket(url);
-  },
-
-  streamJobsWebSocket() {
-    const wsProtocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
-    const wsHost = window.location.host;
-    const url = `${wsProtocol}//${wsHost}${API_BASE}/jobs/ws-old`;
-    return new WebSocket(url);
-  },
-
-  streamJobWebSocket(jobId) {
-    const wsProtocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
-    const wsHost = window.location.host;
-    const url = `${wsProtocol}//${wsHost}${API_BASE}/jobs/${jobId}/ws`;
-    return new WebSocket(url);
-  },
-
-  async retryTask(jobId, taskId) {
-    return api.post(`/jobs/${jobId}/tasks/${taskId}/retry`);
-  },
-
-  async getMetadata(jobId) {
-    return api.get(`/jobs/${jobId}/metadata`);
-  },
-
-  async getTasks(jobId, options = {}) {
-    const key = getCacheKey(`/jobs/${jobId}/tasks`, options);
-    return debounceRequest(key, () => {
-      const params = new URLSearchParams();
-      if (options.limit) params.append('limit', options.limit.toString());
-      if (options.offset) params.append('offset', options.offset.toString());
-      if (options.status) params.append('status', options.status);
-      if (options.frameStart) params.append('frame_start', options.frameStart.toString());
-      if (options.frameEnd) params.append('frame_end', options.frameEnd.toString());
-      if (options.sort) params.append('sort', options.sort);
-      const query = params.toString();
-      return api.get(`/jobs/${jobId}/tasks${query ? '?' + query : ''}`, options);
-    });
-  },
-
-  async getTasksSummary(jobId, options = {}) {
-    const key = getCacheKey(`/jobs/${jobId}/tasks/summary`, options);
-    return debounceRequest(key, () => {
-      const params = new URLSearchParams();
-      if (options.limit) params.append('limit', options.limit.toString());
-      if (options.offset) params.append('offset', options.offset.toString());
-      if (options.status) params.append('status', options.status);
-      if (options.sort) params.append('sort', options.sort);
-      const query = params.toString();
-      return api.get(`/jobs/${jobId}/tasks/summary${query ? '?' + query : ''}`, options);
-    });
-  },
-
-  async batchGetJobs(jobIds) {
-    // Sort jobIds for consistent cache key
-    const sortedIds = [...jobIds].sort((a, b) => a - b);
-    const key = getCacheKey('/jobs/batch', { job_ids: sortedIds.join(',') });
-    return debounceRequest(key, () => {
-      return api.post('/jobs/batch', { job_ids: jobIds });
-    });
-  },
-
-  async batchGetTasks(jobId, taskIds) {
-    // Sort taskIds for consistent cache key
-    const sortedIds = [...taskIds].sort((a, b) => a - b);
-    const key = getCacheKey(`/jobs/${jobId}/tasks/batch`, { task_ids: sortedIds.join(',') });
-    return debounceRequest(key, () => {
-      return api.post(`/jobs/${jobId}/tasks/batch`, { task_ids: taskIds });
-    });
-  },
-};
-
-export const runners = {
-  // Non-admin runner list removed - use admin.listRunners() instead
-};
-
-export const admin = {
-  async generateAPIKey(name, description, scope) {
-    const data = { name, scope };
-    if (description) data.description = description;
-    return api.post('/admin/runners/api-keys', data);
-  },
-
-  async listAPIKeys() {
-    return api.get('/admin/runners/api-keys');
-  },
-
-  async revokeAPIKey(keyId) {
-    return api.patch(`/admin/runners/api-keys/${keyId}/revoke`);
-  },
-
-  async deleteAPIKey(keyId) {
-    return api.delete(`/admin/runners/api-keys/${keyId}`);
-  },
-
-  async listRunners() {
-    return api.get('/admin/runners');
-  },
-
-  async verifyRunner(runnerId) {
-    return api.post(`/admin/runners/${runnerId}/verify`);
-  },
-
-  async deleteRunner(runnerId) {
-    return api.delete(`/admin/runners/${runnerId}`);
-  },
-
-  async listUsers() {
-    return api.get('/admin/users');
-  },
-
-  async getUserJobs(userId) {
-    return api.get(`/admin/users/${userId}/jobs`);
-  },
-
-  async setUserAdminStatus(userId, isAdmin) {
-    return api.post(`/admin/users/${userId}/admin`, { is_admin: isAdmin });
-  },
-
-  async getRegistrationEnabled() {
-    return api.get('/admin/settings/registration');
-  },
-
-  async setRegistrationEnabled(enabled) {
-    return api.post('/admin/settings/registration', { enabled });
-  },
-};
-

web/src/utils/websocket.js

@@ -1,271 +0,0 @@
-// Shared WebSocket connection manager
-// All components should use this instead of creating their own connections
-
-class WebSocketManager {
-  constructor() {
-    this.ws = null;
-    this.listeners = new Map(); // Map of listener IDs to callback functions
-    this.reconnectTimeout = null;
-    this.reconnectDelay = 2000;
-    this.isConnecting = false;
-    this.listenerIdCounter = 0;
-    this.verboseLogging = false; // Set to true to enable verbose WebSocket logging
-    
-    // Track server-side channel subscriptions for re-subscription on reconnect
-    this.serverSubscriptions = new Set(); // Channels we want to be subscribed to
-    this.confirmedSubscriptions = new Set(); // Channels confirmed by server
-    this.pendingSubscriptions = new Set(); // Channels waiting for confirmation
-  }
-
-  connect() {
-    // If already connected or connecting, don't create a new connection
-    if (this.ws && (this.ws.readyState === WebSocket.CONNECTING || this.ws.readyState === WebSocket.OPEN)) {
-      return;
-    }
-
-    if (this.isConnecting) {
-      return;
-    }
-
-    this.isConnecting = true;
-
-    try {
-      const wsProtocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
-      const wsHost = window.location.host;
-      const API_BASE = '/api';
-      const url = `${wsProtocol}//${wsHost}${API_BASE}/jobs/ws`;
-      
-      this.ws = new WebSocket(url);
-
-      this.ws.onopen = () => {
-        if (this.verboseLogging) {
-          console.log('Shared WebSocket connected');
-        }
-        this.isConnecting = false;
-        
-        // Re-subscribe to all channels that were previously subscribed
-        this.resubscribeToChannels();
-        
-        this.notifyListeners('open', {});
-      };
-
-      this.ws.onmessage = (event) => {
-        try {
-          const data = JSON.parse(event.data);
-          if (this.verboseLogging) {
-            console.log('WebSocketManager: Message received:', data.type, data.channel || 'no channel', data);
-          }
-          this.notifyListeners('message', data);
-        } catch (error) {
-          console.error('WebSocketManager: Failed to parse message:', error, 'Raw data:', event.data);
-        }
-      };
-
-      this.ws.onerror = (error) => {
-        console.error('Shared WebSocket error:', error);
-        this.isConnecting = false;
-        this.notifyListeners('error', error);
-      };
-
-      this.ws.onclose = (event) => {
-        if (this.verboseLogging) {
-          console.log('Shared WebSocket closed:', {
-            code: event.code,
-            reason: event.reason,
-            wasClean: event.wasClean
-          });
-        }
-        this.ws = null;
-        this.isConnecting = false;
-        
-        // Clear confirmed/pending but keep serverSubscriptions for re-subscription
-        this.confirmedSubscriptions.clear();
-        this.pendingSubscriptions.clear();
-        
-        this.notifyListeners('close', event);
-        
-        // Always retry connection if we have listeners
-        if (this.listeners.size > 0) {
-          if (this.reconnectTimeout) {
-            clearTimeout(this.reconnectTimeout);
-          }
-          this.reconnectTimeout = setTimeout(() => {
-            if (!this.ws || this.ws.readyState === WebSocket.CLOSED) {
-              this.connect();
-            }
-          }, this.reconnectDelay);
-        }
-      };
-    } catch (error) {
-      console.error('Failed to create WebSocket:', error);
-      this.isConnecting = false;
-      // Retry after delay
-      this.reconnectTimeout = setTimeout(() => {
-        this.connect();
-      }, this.reconnectDelay);
-    }
-  }
-
-  subscribe(listenerId, callbacks) {
-    // Generate ID if not provided
-    if (!listenerId) {
-      listenerId = `listener_${this.listenerIdCounter++}`;
-    }
-
-    if (this.verboseLogging) {
-      console.log('WebSocketManager: Subscribing listener:', listenerId, 'WebSocket state:', this.ws ? this.ws.readyState : 'no connection');
-    }
-    this.listeners.set(listenerId, callbacks);
-
-    // Connect if not already connected
-    if (!this.ws || this.ws.readyState === WebSocket.CLOSED) {
-      if (this.verboseLogging) {
-        console.log('WebSocketManager: WebSocket not connected, connecting...');
-      }
-      this.connect();
-    }
-
-    // If already open, notify immediately
-    if (this.ws && this.ws.readyState === WebSocket.OPEN && callbacks.open) {
-      if (this.verboseLogging) {
-        console.log('WebSocketManager: WebSocket already open, calling open callback for listener:', listenerId);
-      }
-      // Use setTimeout to ensure this happens after the listener is registered
-      setTimeout(() => {
-        if (callbacks.open) {
-          callbacks.open();
-        }
-      }, 0);
-    }
-
-    return listenerId;
-  }
-
-  unsubscribe(listenerId) {
-    this.listeners.delete(listenerId);
-    
-    // If no more listeners, we could close the connection, but let's keep it open
-    // in case other components need it
-  }
-
-  send(data) {
-    if (this.ws && this.ws.readyState === WebSocket.OPEN) {
-      if (this.verboseLogging) {
-        console.log('WebSocketManager: Sending message:', data);
-      }
-      this.ws.send(JSON.stringify(data));
-    } else {
-      console.warn('WebSocketManager: Cannot send message - connection not open. State:', this.ws ? this.ws.readyState : 'no connection', 'Message:', data);
-    }
-  }
-
-  notifyListeners(eventType, data) {
-    this.listeners.forEach((callbacks) => {
-      if (callbacks[eventType]) {
-        try {
-          callbacks[eventType](data);
-        } catch (error) {
-          console.error('Error in WebSocket listener:', error);
-        }
-      }
-    });
-  }
-
-  getReadyState() {
-    return this.ws ? this.ws.readyState : WebSocket.CLOSED;
-  }
-
-  // Subscribe to a server-side channel (will be re-subscribed on reconnect)
-  subscribeToChannel(channel) {
-    if (this.serverSubscriptions.has(channel)) {
-      // Already subscribed or pending
-      return;
-    }
-    
-    this.serverSubscriptions.add(channel);
-    
-    if (this.ws && this.ws.readyState === WebSocket.OPEN) {
-      if (!this.confirmedSubscriptions.has(channel) && !this.pendingSubscriptions.has(channel)) {
-        this.pendingSubscriptions.add(channel);
-        this.send({ type: 'subscribe', channel });
-        if (this.verboseLogging) {
-          console.log('WebSocketManager: Subscribing to channel:', channel);
-        }
-      }
-    }
-  }
-
-  // Unsubscribe from a server-side channel (won't be re-subscribed on reconnect)
-  unsubscribeFromChannel(channel) {
-    this.serverSubscriptions.delete(channel);
-    this.confirmedSubscriptions.delete(channel);
-    this.pendingSubscriptions.delete(channel);
-    
-    if (this.ws && this.ws.readyState === WebSocket.OPEN) {
-      this.send({ type: 'unsubscribe', channel });
-      if (this.verboseLogging) {
-        console.log('WebSocketManager: Unsubscribing from channel:', channel);
-      }
-    }
-  }
-
-  // Mark a channel subscription as confirmed (call this when server confirms)
-  confirmSubscription(channel) {
-    this.pendingSubscriptions.delete(channel);
-    this.confirmedSubscriptions.add(channel);
-    if (this.verboseLogging) {
-      console.log('WebSocketManager: Subscription confirmed for channel:', channel);
-    }
-  }
-
-  // Mark a channel subscription as failed (call this when server rejects)
-  failSubscription(channel) {
-    this.pendingSubscriptions.delete(channel);
-    this.serverSubscriptions.delete(channel);
-    if (this.verboseLogging) {
-      console.log('WebSocketManager: Subscription failed for channel:', channel);
-    }
-  }
-
-  // Check if subscribed to a channel
-  isSubscribedToChannel(channel) {
-    return this.confirmedSubscriptions.has(channel);
-  }
-
-  // Re-subscribe to all channels after reconnect
-  resubscribeToChannels() {
-    if (this.serverSubscriptions.size === 0) {
-      return;
-    }
-    
-    if (this.verboseLogging) {
-      console.log('WebSocketManager: Re-subscribing to channels:', Array.from(this.serverSubscriptions));
-    }
-    
-    for (const channel of this.serverSubscriptions) {
-      if (!this.pendingSubscriptions.has(channel)) {
-        this.pendingSubscriptions.add(channel);
-        this.send({ type: 'subscribe', channel });
-      }
-    }
-  }
-
-  disconnect() {
-    if (this.reconnectTimeout) {
-      clearTimeout(this.reconnectTimeout);
-      this.reconnectTimeout = null;
-    }
-    if (this.ws) {
-      this.ws.close();
-      this.ws = null;
-    }
-    this.listeners.clear();
-    this.serverSubscriptions.clear();
-    this.confirmedSubscriptions.clear();
-    this.pendingSubscriptions.clear();
-  }
-}
-
-// Export singleton instance
-export const wsManager = new WebSocketManager();
-

web/static/admin.js

@@ -0,0 +1,95 @@
+(function () {
+  const msgEl = document.getElementById("admin-message");
+  const errEl = document.getElementById("admin-error");
+  const saveRegBtn = document.getElementById("save-registration");
+  const regCheckbox = document.getElementById("registration-enabled");
+  const createKeyBtn = document.getElementById("create-api-key");
+
+  function showMessage(msg) {
+    msgEl.textContent = msg || "";
+    msgEl.classList.toggle("hidden", !msg);
+  }
+  function showError(msg) {
+    errEl.textContent = msg || "";
+    errEl.classList.toggle("hidden", !msg);
+  }
+
+  async function request(url, method, payload) {
+    const res = await fetch(url, {
+      method,
+      credentials: "include",
+      headers: { "Content-Type": "application/json" },
+      body: payload ? JSON.stringify(payload) : undefined,
+    });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) throw new Error(data.error || "Request failed");
+    return data;
+  }
+
+  function refreshAll() {
+    if (!window.htmx) return window.location.reload();
+    htmx.ajax("GET", "/ui/fragments/admin/runners", "#admin-runners");
+    htmx.ajax("GET", "/ui/fragments/admin/users", "#admin-users");
+    htmx.ajax("GET", "/ui/fragments/admin/apikeys", "#admin-apikeys");
+  }
+
+  if (saveRegBtn && regCheckbox) {
+    saveRegBtn.addEventListener("click", async () => {
+      showError("");
+      try {
+        await request("/api/admin/settings/registration", "POST", { enabled: regCheckbox.checked });
+        showMessage("Registration setting saved.");
+      } catch (err) {
+        showError(err.message);
+      }
+    });
+  }
+
+  if (createKeyBtn) {
+    createKeyBtn.addEventListener("click", async () => {
+      const name = prompt("API key name:");
+      if (!name) return;
+      showError("");
+      try {
+        const data = await request("/api/admin/runners/api-keys", "POST", { name, scope: "manager" });
+        showMessage(`New API key created: ${data.key}`);
+        refreshAll();
+      } catch (err) {
+        showError(err.message);
+      }
+    });
+  }
+
+  document.body.addEventListener("click", async (e) => {
+    const deleteRunner = e.target.closest("[data-delete-runner]");
+    const setAdmin = e.target.closest("[data-set-admin]");
+    const revokeKey = e.target.closest("[data-revoke-apikey]");
+    const deleteKey = e.target.closest("[data-delete-apikey]");
+    if (!deleteRunner && !setAdmin && !revokeKey && !deleteKey) return;
+
+    showError("");
+    try {
+      if (deleteRunner) {
+        const id = deleteRunner.getAttribute("data-delete-runner");
+        if (!confirm("Delete this runner?")) return;
+        await request(`/api/admin/runners/${id}`, "DELETE");
+      }
+      if (setAdmin) {
+        const id = setAdmin.getAttribute("data-set-admin");
+        const value = setAdmin.getAttribute("data-admin-value") === "true";
+        await request(`/api/admin/users/${id}/admin`, "POST", { is_admin: value });
+      }
+      if (revokeKey) {
+        const id = revokeKey.getAttribute("data-revoke-apikey");
+        await request(`/api/admin/runners/api-keys/${id}/revoke`, "PATCH");
+      }
+      if (deleteKey) {
+        const id = deleteKey.getAttribute("data-delete-apikey");
+        await request(`/api/admin/runners/api-keys/${id}`, "DELETE");
+      }
+      refreshAll();
+    } catch (err) {
+      showError(err.message);
+    }
+  });
+})();

web/static/job_new.js

@@ -0,0 +1,286 @@
+(function () {
+  const uploadForm = document.getElementById("upload-analyze-form");
+  const configForm = document.getElementById("job-config-form");
+  const fileInput = document.getElementById("source-file");
+  const statusEl = document.getElementById("upload-status");
+  const errorEl = document.getElementById("job-create-error");
+  const blendVersionEl = document.getElementById("blender-version");
+  const mainBlendWrapper = document.getElementById("main-blend-wrapper");
+  const mainBlendSelect = document.getElementById("main-blend-select");
+  const metadataPreview = document.getElementById("metadata-preview");
+  const configSection = document.getElementById("job-config-section");
+  const uploadSection = document.getElementById("job-upload-section");
+  const uploadSubmitBtn = uploadForm.querySelector('button[type="submit"]');
+  const stepUpload = document.getElementById("step-upload");
+  const stepConfig = document.getElementById("step-config");
+  const nameInput = document.getElementById("job-name");
+  const frameStartInput = document.getElementById("frame-start");
+  const frameEndInput = document.getElementById("frame-end");
+  const outputFormatInput = document.getElementById("output-format");
+  const unhideObjectsInput = document.getElementById("unhide-objects");
+  const enableExecutionInput = document.getElementById("enable-execution");
+
+  let sessionID = "";
+  let pollTimer = null;
+  let uploadInProgress = false;
+
+  function showError(msg) {
+    errorEl.textContent = msg || "";
+    errorEl.classList.toggle("hidden", !msg);
+  }
+
+  function showStatus(msg) {
+    statusEl.classList.remove("hidden");
+    statusEl.innerHTML = `<p>${msg}</p>`;
+  }
+
+  function setUploadBusy(busy) {
+    uploadInProgress = busy;
+    if (!uploadSubmitBtn) return;
+    uploadSubmitBtn.disabled = busy;
+  }
+
+  function setStep(step) {
+    const uploadActive = step === 1;
+    stepUpload.classList.toggle("active", uploadActive);
+    stepUpload.classList.toggle("complete", !uploadActive);
+    stepConfig.classList.toggle("active", !uploadActive);
+    uploadSection.classList.toggle("hidden", !uploadActive);
+    configSection.classList.toggle("hidden", uploadActive);
+  }
+
+  function fileNameToJobName(fileName) {
+    const stem = (fileName || "Render Job").replace(/\.[^/.]+$/, "");
+    return stem.trim() || "Render Job";
+  }
+
+  function prefillFromMetadata(status, fileName) {
+    const metadata = status.metadata || {};
+    const render = metadata.render_settings || {};
+
+    nameInput.value = fileNameToJobName(fileName || status.file_name);
+    frameStartInput.value = Number.isFinite(metadata.frame_start) ? metadata.frame_start : 1;
+    frameEndInput.value = Number.isFinite(metadata.frame_end) ? metadata.frame_end : 250;
+
+    if (render.output_format && outputFormatInput.querySelector(`option[value="${render.output_format}"]`)) {
+      outputFormatInput.value = render.output_format;
+    } else {
+      outputFormatInput.value = "EXR";
+    }
+
+    if (metadata.blender_version && blendVersionEl.querySelector(`option[value="${metadata.blender_version}"]`)) {
+      blendVersionEl.value = metadata.blender_version;
+    } else {
+      blendVersionEl.value = "";
+    }
+
+    unhideObjectsInput.checked = Boolean(metadata.unhide_objects);
+    enableExecutionInput.checked = Boolean(metadata.enable_execution);
+
+    const scenes = metadata.scene_info || {};
+    metadataPreview.innerHTML = `
+      <div class="metadata-grid">
+        <div><strong>Detected file:</strong> ${status.file_name || fileName || "-"}</div>
+        <div><strong>Frames:</strong> ${metadata.frame_start ?? "-"} - ${metadata.frame_end ?? "-"}</div>
+        <div><strong>Render engine:</strong> ${render.engine || "-"}</div>
+        <div><strong>Resolution:</strong> ${render.resolution_x || "-"} x ${render.resolution_y || "-"}</div>
+        <div><strong>Frame rate:</strong> ${render.frame_rate || "-"}</div>
+        <div><strong>Objects:</strong> ${scenes.object_count ?? "-"}</div>
+      </div>
+    `;
+  }
+
+  async function loadBlenderVersions() {
+    try {
+      const res = await fetch("/api/blender/versions", { credentials: "include" });
+      if (!res.ok) return;
+      const data = await res.json();
+      const versions = data.versions || [];
+      versions.slice(0, 30).forEach((v) => {
+        const option = document.createElement("option");
+        option.value = v.full;
+        option.textContent = v.full;
+        blendVersionEl.appendChild(option);
+      });
+    } catch (_) {}
+  }
+
+  function uploadFile(mainBlendFile) {
+    return new Promise((resolve, reject) => {
+      const file = fileInput.files[0];
+      if (!file) {
+        reject(new Error("Select a file first"));
+        return;
+      }
+      const lowerName = file.name.toLowerCase();
+      const isAccepted = lowerName.endsWith(".blend") || lowerName.endsWith(".zip");
+      if (!isAccepted) {
+        reject(new Error("Only .blend or .zip files are supported."));
+        return;
+      }
+
+      const fd = new FormData();
+      fd.append("file", file);
+      if (mainBlendFile) {
+        fd.append("main_blend_file", mainBlendFile);
+      }
+
+      const xhr = new XMLHttpRequest();
+      xhr.open("POST", "/api/jobs/upload", true);
+      xhr.withCredentials = true;
+      xhr.upload.addEventListener("progress", (e) => {
+        if (!e.lengthComputable) return;
+        const pct = Math.round((e.loaded / e.total) * 100);
+        showStatus(`Uploading: ${pct}%`);
+      });
+      xhr.onload = () => {
+        try {
+          const data = JSON.parse(xhr.responseText || "{}");
+          if (xhr.status >= 400) {
+            reject(new Error(data.error || "Upload failed"));
+            return;
+          }
+          resolve(data);
+        } catch (err) {
+          reject(err);
+        }
+      };
+      xhr.onerror = () => reject(new Error("Upload failed"));
+      xhr.send(fd);
+    });
+  }
+
+  async function pollUploadStatus() {
+    if (!sessionID) return null;
+    const res = await fetch(`/api/jobs/upload/status?session_id=${encodeURIComponent(sessionID)}`, { credentials: "include" });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      throw new Error(data.error || "Upload status check failed");
+    }
+    return data;
+  }
+
+  async function createJob(payload) {
+    const res = await fetch("/api/jobs", {
+      method: "POST",
+      credentials: "include",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify(payload),
+    });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      throw new Error(data.error || "Job creation failed");
+    }
+    return data;
+  }
+
+  async function runSubmission(mainBlendFile) {
+    showError("");
+    setStep(1);
+    configSection.classList.add("hidden");
+    metadataPreview.innerHTML = "";
+
+    const upload = await uploadFile(mainBlendFile);
+    sessionID = upload.session_id;
+    showStatus("Upload complete. Processing...");
+
+    clearInterval(pollTimer);
+    await new Promise((resolve, reject) => {
+      pollTimer = setInterval(async () => {
+        try {
+          const status = await pollUploadStatus();
+          if (!status) return;
+          showStatus(`${status.message || status.status} (${Math.round((status.progress || 0) * 100)}%)`);
+
+          if (status.status === "select_blend") {
+            clearInterval(pollTimer);
+            mainBlendSelect.innerHTML = "";
+            (status.blend_files || []).forEach((path) => {
+              const option = document.createElement("option");
+              option.value = path;
+              option.textContent = path;
+              mainBlendSelect.appendChild(option);
+            });
+            mainBlendWrapper.classList.remove("hidden");
+            reject(new Error("Select a main blend file and submit again."));
+            return;
+          }
+
+          if (status.status === "error") {
+            clearInterval(pollTimer);
+            reject(new Error(status.error || "Upload processing failed"));
+            return;
+          }
+
+          if (status.status === "completed") {
+            clearInterval(pollTimer);
+            prefillFromMetadata(status, fileInput.files[0]?.name || "");
+            setStep(2);
+            resolve();
+          }
+        } catch (err) {
+          clearInterval(pollTimer);
+          reject(err);
+        }
+      }, 1500);
+    });
+
+  }
+
+  async function submitJobConfig() {
+    if (!sessionID) {
+      throw new Error("Upload and analyze a file first.");
+    }
+
+    const fd = new FormData(configForm);
+    const jobName = String(fd.get("name") || "").trim();
+    if (!jobName) {
+      throw new Error("Job name is required.");
+    }
+    nameInput.value = jobName;
+    const payload = {
+      job_type: "render",
+      name: jobName,
+      frame_start: Number(fd.get("frame_start")),
+      frame_end: Number(fd.get("frame_end")),
+      output_format: fd.get("output_format"),
+      upload_session_id: sessionID,
+      unhide_objects: Boolean(fd.get("unhide_objects")),
+      enable_execution: Boolean(fd.get("enable_execution")),
+    };
+    const blenderVersion = fd.get("blender_version");
+    if (blenderVersion) payload.blender_version = blenderVersion;
+
+    const job = await createJob(payload);
+    showStatus(`Job created (#${job.id}). Redirecting...`);
+    window.location.href = `/jobs/${job.id}`;
+  }
+
+  uploadForm.addEventListener("submit", async (e) => {
+    e.preventDefault();
+    if (uploadInProgress) {
+      return;
+    }
+    try {
+      setUploadBusy(true);
+      const selected = mainBlendWrapper.classList.contains("hidden") ? "" : mainBlendSelect.value;
+      await runSubmission(selected);
+    } catch (err) {
+      showError(err.message || "Failed to create job");
+      setUploadBusy(false);
+    }
+  });
+
+  configForm.addEventListener("submit", async (e) => {
+    e.preventDefault();
+    try {
+      showError("");
+      await submitJobConfig();
+    } catch (err) {
+      showError(err.message || "Failed to create job");
+    }
+  });
+
+  setStep(1);
+  loadBlenderVersions();
+})();

web/static/job_show.js

@@ -0,0 +1,428 @@
+(function () {
+  const jobID = window.location.pathname.split("/").pop();
+  const progressFill = document.querySelector(".progress-fill[data-progress]");
+  const progressText = document.getElementById("job-progress-text");
+  const statusBadge = document.getElementById("job-status-badge");
+  const tasksRefreshBtn = document.getElementById("tasks-refresh");
+  const tasksFragment = document.getElementById("tasks-fragment");
+  const filesRefreshBtn = document.getElementById("files-refresh");
+  const filesFragment = document.getElementById("files-fragment");
+  const cancelJobBtn = document.getElementById("cancel-job-btn");
+  const deleteJobBtn = document.getElementById("delete-job-btn");
+  const previewModal = document.getElementById("exr-preview-modal");
+  const previewImage = document.getElementById("exr-preview-image");
+  const previewLoading = document.getElementById("exr-preview-loading");
+  const previewError = document.getElementById("exr-preview-error");
+  const previewName = document.getElementById("exr-preview-name");
+  let lastJobSnapshot = null;
+  let lastSmartRefreshAt = 0;
+  if (progressFill) {
+    const value = Number(progressFill.getAttribute("data-progress") || "0");
+    const bounded = Math.max(0, Math.min(100, value));
+    progressFill.style.width = `${bounded}%`;
+  }
+
+  function statusClass(status) {
+    const normalized = String(status || "").toLowerCase();
+    if (normalized === "completed") return "status-completed";
+    if (normalized === "running") return "status-running";
+    if (normalized === "failed") return "status-failed";
+    if (normalized === "cancelled") return "status-cancelled";
+    return "status-pending";
+  }
+
+  function applyJobState(job) {
+    if (!job) return;
+    const normalizedStatus = String(job.status || "pending").toLowerCase();
+    const canCancel = normalizedStatus === "pending" || normalizedStatus === "running";
+    const canDelete = normalizedStatus === "completed" || normalizedStatus === "failed" || normalizedStatus === "cancelled";
+    const progressValue = Math.max(0, Math.min(100, Number(job.progress || 0)));
+    if (progressFill) {
+      progressFill.style.width = `${progressValue}%`;
+      progressFill.setAttribute("data-progress", String(Math.round(progressValue)));
+    }
+    if (progressText) {
+      progressText.textContent = `${Math.round(progressValue)}%`;
+    }
+    if (statusBadge) {
+      statusBadge.textContent = normalizedStatus;
+      statusBadge.classList.remove("status-pending", "status-running", "status-completed", "status-failed", "status-cancelled");
+      statusBadge.classList.add(statusClass(job.status));
+    }
+    if (cancelJobBtn) {
+      cancelJobBtn.classList.toggle("hidden", !canCancel);
+    }
+    if (deleteJobBtn) {
+      deleteJobBtn.classList.toggle("hidden", !canDelete);
+    }
+  }
+
+  function refreshTasksAndFiles() {
+    if (!window.htmx) return;
+    if (tasksFragment) {
+      htmx.ajax("GET", `/ui/fragments/jobs/${jobID}/tasks`, "#tasks-fragment");
+    }
+    if (filesFragment) {
+      htmx.ajax("GET", `/ui/fragments/jobs/${jobID}/files`, "#files-fragment");
+    }
+    lastSmartRefreshAt = Date.now();
+  }
+
+  async function pollJobState() {
+    try {
+      const res = await fetch(`/api/jobs/${jobID}`, { credentials: "include" });
+      if (!res.ok) return;
+      const job = await res.json();
+      applyJobState(job);
+
+      const snapshot = {
+        status: String(job.status || ""),
+        progress: Math.round(Number(job.progress || 0)),
+        startedAt: job.started_at || "",
+        completedAt: job.completed_at || "",
+      };
+      const changed =
+        !lastJobSnapshot ||
+        snapshot.status !== lastJobSnapshot.status ||
+        snapshot.progress !== lastJobSnapshot.progress ||
+        snapshot.startedAt !== lastJobSnapshot.startedAt ||
+        snapshot.completedAt !== lastJobSnapshot.completedAt;
+      lastJobSnapshot = snapshot;
+
+      // Smart refresh fragments only when job state changes.
+      if (changed) {
+        refreshTasksAndFiles();
+        return;
+      }
+
+      // Fallback while running: refresh infrequently even without visible progress deltas.
+      if (snapshot.status === "running" && Date.now() - lastSmartRefreshAt > 12000) {
+        refreshTasksAndFiles();
+      }
+    } catch (_) {
+      // Keep UI usable even if polling briefly fails.
+    }
+  }
+
+  if (tasksRefreshBtn && tasksFragment && window.htmx) {
+    tasksRefreshBtn.addEventListener("click", () => {
+      htmx.ajax("GET", `/ui/fragments/jobs/${jobID}/tasks`, "#tasks-fragment");
+    });
+  }
+  if (filesRefreshBtn && filesFragment && window.htmx) {
+    filesRefreshBtn.addEventListener("click", () => {
+      htmx.ajax("GET", `/ui/fragments/jobs/${jobID}/files`, "#files-fragment");
+    });
+  }
+  pollJobState();
+  setInterval(pollJobState, 2500);
+
+  async function apiRequest(url, method) {
+    const res = await fetch(url, {
+      method,
+      credentials: "include",
+      headers: { "Content-Type": "application/json" },
+    });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      throw new Error(data.error || "Request failed");
+    }
+    return data;
+  }
+
+  function closePreviewModal() {
+    if (!previewModal) return;
+    previewModal.classList.add("hidden");
+    if (previewImage) {
+      previewImage.classList.add("hidden");
+      previewImage.removeAttribute("src");
+    }
+    if (previewLoading) previewLoading.classList.remove("hidden");
+    if (previewError) {
+      previewError.classList.add("hidden");
+      previewError.textContent = "";
+    }
+  }
+
+  function openPreviewModal(url, name) {
+    if (!previewModal || !previewImage) return;
+    previewModal.classList.remove("hidden");
+    if (previewName) previewName.textContent = name ? `File: ${name}` : "";
+    if (previewLoading) previewLoading.classList.remove("hidden");
+    if (previewError) {
+      previewError.classList.add("hidden");
+      previewError.textContent = "";
+    }
+    previewImage.classList.add("hidden");
+    previewImage.onload = () => {
+      if (previewLoading) previewLoading.classList.add("hidden");
+      previewImage.classList.remove("hidden");
+    };
+    previewImage.onerror = () => {
+      if (previewLoading) previewLoading.classList.add("hidden");
+      if (previewError) {
+        previewError.textContent = "Failed to load preview image.";
+        previewError.classList.remove("hidden");
+      }
+    };
+    previewImage.src = url;
+  }
+
+  document.body.addEventListener("click", async (e) => {
+    const previewBtn = e.target.closest("[data-exr-preview-url]");
+    if (previewBtn) {
+      const url = previewBtn.getAttribute("data-exr-preview-url");
+      const name = previewBtn.getAttribute("data-exr-preview-name");
+      if (url) {
+        openPreviewModal(url, name || "");
+      }
+      return;
+    }
+
+    const modalClose = e.target.closest("[data-modal-close]");
+    if (modalClose) {
+      closePreviewModal();
+      return;
+    }
+
+    const cancelBtn = e.target.closest("[data-cancel-job]");
+    const deleteBtn = e.target.closest("[data-delete-job]");
+    if (!cancelBtn && !deleteBtn) return;
+    const id = (cancelBtn || deleteBtn).getAttribute(cancelBtn ? "data-cancel-job" : "data-delete-job");
+    try {
+      if (cancelBtn) {
+        if (!confirm("Cancel this job?")) return;
+        await apiRequest(`/api/jobs/${id}`, "DELETE");
+      } else {
+        if (!confirm("Delete this job permanently?")) return;
+        await apiRequest(`/api/jobs/${id}/delete`, "POST");
+        window.location.href = "/jobs";
+        return;
+      }
+      window.location.reload();
+    } catch (err) {
+      alert(err.message);
+    }
+  });
+
+  document.addEventListener("keydown", (e) => {
+    if (e.key === "Escape") {
+      closePreviewModal();
+    }
+  });
+
+  const taskSelect = document.getElementById("task-log-task-id");
+  const levelFilter = document.getElementById("task-log-level-filter");
+  const autoRefreshToggle = document.getElementById("task-log-auto-refresh");
+  const followToggle = document.getElementById("task-log-follow");
+  const refreshBtn = document.getElementById("task-log-refresh");
+  const copyBtn = document.getElementById("task-log-copy");
+  const output = document.getElementById("task-log-output");
+  const statusEl = document.getElementById("task-log-status");
+  const state = {
+    timer: null,
+    activeTaskID: "",
+    lastLogID: 0,
+    logs: [],
+    seenIDs: new Set(),
+  };
+
+  function setStatus(text) {
+    if (statusEl) statusEl.textContent = text;
+  }
+
+  function levelClass(level) {
+    const normalized = String(level || "INFO").toUpperCase();
+    if (normalized === "ERROR") return "log-error";
+    if (normalized === "WARN") return "log-warn";
+    if (normalized === "DEBUG") return "log-debug";
+    return "log-info";
+  }
+
+  function formatTime(ts) {
+    if (!ts) return "--:--:--";
+    const d = new Date(ts);
+    if (Number.isNaN(d.getTime())) return "--:--:--";
+    return d.toLocaleTimeString();
+  }
+
+  function renderLogs() {
+    if (!output) return;
+    const selectedLevel = (levelFilter?.value || "").toUpperCase();
+    const filtered = state.logs.filter((entry) => {
+      if (!selectedLevel) return true;
+      return String(entry.log_level || "").toUpperCase() === selectedLevel;
+    });
+
+    if (filtered.length === 0) {
+      output.innerHTML = '<div class="log-line empty">No logs yet.</div>';
+      return;
+    }
+
+    output.innerHTML = filtered.map((entry) => {
+      const level = String(entry.log_level || "INFO").toUpperCase();
+      const step = entry.step_name ? ` <span class="log-step">(${entry.step_name})</span>` : "";
+      const message = String(entry.message || "").replaceAll("&", "&amp;").replaceAll("<", "&lt;").replaceAll(">", "&gt;");
+      return `<div class="log-line">
+        <span class="log-time">${formatTime(entry.created_at)}</span>
+        <span class="log-level ${levelClass(level)}">${level}</span>${step}
+        <span class="log-message">${message}</span>
+      </div>`;
+    }).join("");
+
+    if (followToggle?.checked) {
+      output.scrollTop = output.scrollHeight;
+    }
+  }
+
+  function getVisibleLogs() {
+    const selectedLevel = (levelFilter?.value || "").toUpperCase();
+    return state.logs.filter((entry) => {
+      if (!selectedLevel) return true;
+      return String(entry.log_level || "").toUpperCase() === selectedLevel;
+    });
+  }
+
+  function logsToText(entries) {
+    return entries.map((entry) => {
+      const level = String(entry.log_level || "INFO").toUpperCase();
+      const step = entry.step_name ? ` (${entry.step_name})` : "";
+      return `[${formatTime(entry.created_at)}] [${level}]${step} ${entry.message || ""}`;
+    }).join("\n");
+  }
+
+  function collectTaskOptions() {
+    if (!taskSelect) return;
+    const buttons = document.querySelectorAll("[data-view-logs-task-id]");
+    const current = taskSelect.value;
+
+    taskSelect.innerHTML = '<option value="">Choose a task...</option>';
+    buttons.forEach((btn) => {
+      const id = btn.getAttribute("data-view-logs-task-id");
+      if (!id) return;
+      const row = btn.closest("tr");
+      const status = row?.querySelector(".status")?.textContent?.trim() || "";
+      const type = row?.children?.[1]?.textContent?.trim() || "";
+      const option = document.createElement("option");
+      option.value = id;
+      option.textContent = `#${id} ${type ? `(${type})` : ""} ${status ? `- ${status}` : ""}`.trim();
+      taskSelect.appendChild(option);
+    });
+
+    if (current && taskSelect.querySelector(`option[value="${current}"]`)) {
+      taskSelect.value = current;
+    }
+  }
+
+  async function fetchLogs({ reset = false, full = false } = {}) {
+    const taskID = taskSelect?.value?.trim();
+    if (!taskID) {
+      setStatus("Select a task to view logs.");
+      return;
+    }
+
+    if (reset || taskID !== state.activeTaskID) {
+      state.activeTaskID = taskID;
+      state.lastLogID = 0;
+      state.logs = [];
+      state.seenIDs.clear();
+      renderLogs();
+    }
+
+    const params = new URLSearchParams();
+    params.set("limit", "0"); // backend: 0 = no limit
+    if (!full && state.lastLogID > 0) {
+      params.set("since_id", String(state.lastLogID));
+    }
+
+    try {
+      const res = await fetch(`/api/jobs/${jobID}/tasks/${taskID}/logs?${params.toString()}`, {
+        credentials: "include",
+      });
+      if (!res.ok) {
+        setStatus(`Failed to fetch logs (HTTP ${res.status}).`);
+        return;
+      }
+
+      const payload = await res.json();
+      const rows = Array.isArray(payload) ? payload : (payload.logs || []);
+      if (rows.length > 0) {
+        for (const row of rows) {
+          const id = Number(row.id || 0);
+          if (id > 0 && !state.seenIDs.has(id)) {
+            state.seenIDs.add(id);
+            state.logs.push(row);
+            if (id > state.lastLogID) state.lastLogID = id;
+          }
+        }
+        if (!Array.isArray(payload) && Number(payload.last_id || 0) > state.lastLogID) {
+          state.lastLogID = Number(payload.last_id);
+        }
+      }
+
+      setStatus(`Task #${taskID}: ${state.logs.length} log line(s).`);
+      renderLogs();
+    } catch (err) {
+      setStatus(`Failed to fetch logs: ${err.message}`);
+    }
+  }
+
+  function restartPolling() {
+    if (state.timer) {
+      clearInterval(state.timer);
+      state.timer = null;
+    }
+    if (!autoRefreshToggle?.checked) return;
+    state.timer = setInterval(() => {
+      if (taskSelect?.value) {
+        fetchLogs();
+      }
+    }, 2000);
+  }
+
+  if (tasksFragment) {
+    tasksFragment.addEventListener("htmx:afterSwap", () => {
+      collectTaskOptions();
+    });
+  }
+  collectTaskOptions();
+
+  document.body.addEventListener("click", (e) => {
+    const viewBtn = e.target.closest("[data-view-logs-task-id]");
+    if (!viewBtn || !taskSelect) return;
+    const taskID = viewBtn.getAttribute("data-view-logs-task-id");
+    if (!taskID) return;
+    taskSelect.value = taskID;
+    fetchLogs({ reset: true, full: true });
+  });
+
+  if (taskSelect) {
+    taskSelect.addEventListener("change", () => fetchLogs({ reset: true, full: true }));
+  }
+  if (levelFilter) {
+    levelFilter.addEventListener("change", renderLogs);
+  }
+  if (refreshBtn) {
+    refreshBtn.addEventListener("click", () => fetchLogs({ reset: true, full: true }));
+  }
+  if (copyBtn) {
+    copyBtn.addEventListener("click", async () => {
+      const visible = getVisibleLogs();
+      if (visible.length === 0) {
+        setStatus("No logs to copy.");
+        return;
+      }
+      try {
+        await navigator.clipboard.writeText(logsToText(visible));
+        setStatus(`Copied ${visible.length} log line(s).`);
+      } catch (_) {
+        setStatus("Clipboard copy failed.");
+      }
+    });
+  }
+  if (autoRefreshToggle) {
+    autoRefreshToggle.addEventListener("change", restartPolling);
+  }
+
+  restartPolling();
+})();

web/static/jobs.js

@@ -0,0 +1,41 @@
+(function () {
+  async function apiRequest(url, method) {
+    const res = await fetch(url, {
+      method,
+      credentials: "include",
+      headers: { "Content-Type": "application/json" },
+    });
+    const data = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      throw new Error(data.error || "Request failed");
+    }
+    return data;
+  }
+
+  document.body.addEventListener("click", async (e) => {
+    const cancelBtn = e.target.closest("[data-cancel-job]");
+    const deleteBtn = e.target.closest("[data-delete-job]");
+    if (!cancelBtn && !deleteBtn) return;
+
+    try {
+      if (cancelBtn) {
+        const id = cancelBtn.getAttribute("data-cancel-job");
+        if (!confirm("Cancel this job?")) return;
+        await apiRequest(`/api/jobs/${id}`, "DELETE");
+      }
+      if (deleteBtn) {
+        const id = deleteBtn.getAttribute("data-delete-job");
+        if (!confirm("Delete this job permanently?")) return;
+        await apiRequest(`/api/jobs/${id}/delete`, "POST");
+      }
+      if (window.htmx) {
+        htmx.trigger("#jobs-fragment", "refresh");
+        htmx.ajax("GET", "/ui/fragments/jobs", "#jobs-fragment");
+      } else {
+        window.location.reload();
+      }
+    } catch (err) {
+      alert(err.message);
+    }
+  });
+})();

web/static/login.js

@@ -0,0 +1,65 @@
+(function () {
+  const loginForm = document.getElementById("login-form");
+  const registerForm = document.getElementById("register-form");
+  const errorEl = document.getElementById("auth-error");
+
+  function setError(msg) {
+    if (!errorEl) return;
+    if (!msg) {
+      errorEl.classList.add("hidden");
+      errorEl.textContent = "";
+      return;
+    }
+    errorEl.textContent = msg;
+    errorEl.classList.remove("hidden");
+  }
+
+  async function postJSON(url, payload) {
+    const res = await fetch(url, {
+      method: "POST",
+      credentials: "include",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify(payload),
+    });
+    const body = await res.json().catch(() => ({}));
+    if (!res.ok) {
+      throw new Error(body.error || "Request failed");
+    }
+    return body;
+  }
+
+  if (loginForm) {
+    loginForm.addEventListener("submit", async (e) => {
+      e.preventDefault();
+      setError("");
+      const fd = new FormData(loginForm);
+      try {
+        await postJSON("/api/auth/local/login", {
+          username: fd.get("username"),
+          password: fd.get("password"),
+        });
+        window.location.href = "/jobs";
+      } catch (err) {
+        setError(err.message);
+      }
+    });
+  }
+
+  if (registerForm) {
+    registerForm.addEventListener("submit", async (e) => {
+      e.preventDefault();
+      setError("");
+      const fd = new FormData(registerForm);
+      try {
+        await postJSON("/api/auth/local/register", {
+          name: fd.get("name"),
+          email: fd.get("email"),
+          password: fd.get("password"),
+        });
+        window.location.href = "/jobs";
+      } catch (err) {
+        setError(err.message);
+      }
+    });
+  }
+})();

web/static/style.css

@@ -0,0 +1,241 @@
+* { box-sizing: border-box; }
+body {
+  margin: 0;
+  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
+  background: #0f172a;
+  color: #e2e8f0;
+}
+.container { max-width: 1200px; margin: 24px auto; padding: 0 16px; }
+.topbar {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 16px;
+  padding: 12px 16px;
+  border-bottom: 1px solid #334155;
+  background: #111827;
+}
+.brand { font-weight: 700; }
+.nav { display: flex; gap: 12px; }
+.nav a { color: #cbd5e1; text-decoration: none; padding: 8px 10px; border-radius: 6px; }
+.nav a.active, .nav a:hover { background: #1f2937; color: #fff; }
+.account { display: flex; gap: 12px; align-items: center; }
+
+.card {
+  background: #111827;
+  border: 1px solid #334155;
+  border-radius: 10px;
+  padding: 16px;
+  margin-bottom: 16px;
+}
+.card.narrow { max-width: 900px; margin-inline: auto; }
+.section-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
+
+.btn {
+  border: 1px solid #475569;
+  color: #e2e8f0;
+  background: #1f2937;
+  border-radius: 7px;
+  padding: 8px 12px;
+  cursor: pointer;
+  text-decoration: none;
+}
+.btn:hover { background: #334155; }
+.btn.primary { background: #2563eb; border-color: #2563eb; color: white; }
+.btn:disabled,
+.btn[disabled] {
+  cursor: not-allowed;
+  opacity: 1;
+}
+.btn.primary:disabled,
+.btn.primary[disabled] {
+  background: #1e293b;
+  border-color: #475569;
+  color: #94a3b8;
+}
+.btn.danger { background: #b91c1c; border-color: #b91c1c; color: white; }
+.btn.subtle { background: transparent; }
+.btn.tiny { padding: 4px 8px; font-size: 12px; }
+
+.table { width: 100%; border-collapse: collapse; }
+.table th, .table td { border-bottom: 1px solid #334155; padding: 8px; text-align: left; vertical-align: top; }
+.table th { font-size: 12px; text-transform: uppercase; color: #94a3b8; }
+.job-link,
+.job-link:visited,
+.job-link:hover,
+.job-link:active {
+  color: #93c5fd;
+  text-decoration: underline;
+  text-underline-offset: 2px;
+  text-decoration-thickness: 1px;
+  cursor: pointer;
+}
+.job-link:hover,
+.job-link:focus-visible {
+  color: #bfdbfe;
+  text-decoration-thickness: 2px;
+}
+
+.status { border-radius: 999px; padding: 2px 8px; font-size: 12px; }
+.status-pending { background: #7c2d12; color: #fdba74; }
+.status-running { background: #164e63; color: #67e8f9; }
+.status-completed { background: #14532d; color: #86efac; }
+.status-failed { background: #7f1d1d; color: #fca5a5; }
+.status-cancelled { background: #334155; color: #cbd5e1; }
+.status-online { background: #14532d; color: #86efac; }
+.status-offline { background: #334155; color: #cbd5e1; }
+.status-busy { background: #164e63; color: #67e8f9; }
+
+.progress {
+  width: 100%;
+  height: 10px;
+  background: #1e293b;
+  border-radius: 999px;
+  overflow: hidden;
+}
+.progress-fill { height: 100%; background: #2563eb; }
+
+.alert {
+  border-radius: 8px;
+  padding: 10px 12px;
+  margin: 10px 0;
+}
+.alert.error { background: #7f1d1d; color: #fee2e2; border: 1px solid #ef4444; }
+.alert.notice { background: #1e3a8a; color: #dbeafe; border: 1px solid #3b82f6; }
+
+label { display: block; }
+input, select {
+  width: 100%;
+  margin-top: 6px;
+  margin-bottom: 12px;
+  background: #0f172a;
+  border: 1px solid #334155;
+  border-radius: 6px;
+  color: #e2e8f0;
+  padding: 8px;
+}
+.stack { display: grid; gap: 8px; }
+.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
+.split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
+.auth-grid { display: flex; gap: 10px; margin-bottom: 12px; }
+.check-row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
+.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
+.stepper { display: flex; gap: 10px; margin-bottom: 12px; }
+.step {
+  border: 1px solid #334155;
+  border-radius: 999px;
+  padding: 6px 10px;
+  font-size: 12px;
+  color: #94a3b8;
+}
+.step.active {
+  border-color: #2563eb;
+  color: #bfdbfe;
+  background: #1e3a8a;
+}
+.step.complete {
+  border-color: #14532d;
+  color: #86efac;
+  background: #052e16;
+}
+.muted { color: #94a3b8; margin-top: 0; }
+.metadata-grid {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 8px;
+  margin: 8px 0 12px;
+}
+.logs {
+  max-height: 320px;
+  overflow: auto;
+  background: #020617;
+  border: 1px solid #334155;
+  border-radius: 8px;
+  padding: 10px;
+  white-space: pre-wrap;
+}
+.log-controls {
+  display: grid;
+  grid-template-columns: 2fr 1fr auto auto auto auto;
+  gap: 10px;
+  align-items: end;
+  margin-bottom: 10px;
+}
+.log-toggle {
+  display: flex;
+  gap: 6px;
+  align-items: center;
+  margin-bottom: 12px;
+  white-space: nowrap;
+}
+.log-toggle input {
+  width: auto;
+  margin: 0;
+}
+.log-lines {
+  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
+  white-space: normal;
+}
+.log-line {
+  display: grid;
+  grid-template-columns: auto auto auto 1fr;
+  gap: 8px;
+  align-items: start;
+  padding: 4px 0;
+  border-bottom: 1px solid #1e293b;
+}
+.log-line.empty {
+  display: block;
+  color: #94a3b8;
+  border-bottom: none;
+}
+.log-time { color: #64748b; }
+.log-level {
+  border-radius: 999px;
+  padding: 0 6px;
+  font-size: 11px;
+  line-height: 18px;
+}
+.log-info { background: #164e63; color: #67e8f9; }
+.log-warn { background: #7c2d12; color: #fdba74; }
+.log-error { background: #7f1d1d; color: #fca5a5; }
+.log-debug { background: #334155; color: #cbd5e1; }
+.log-step { color: #93c5fd; }
+.log-message {
+  color: #e2e8f0;
+  overflow-wrap: anywhere;
+}
+.modal {
+  position: fixed;
+  inset: 0;
+  z-index: 1000;
+  display: grid;
+  place-items: center;
+}
+.modal-backdrop {
+  position: absolute;
+  inset: 0;
+  background: rgba(2, 6, 23, 0.8);
+}
+.modal-content {
+  position: relative;
+  width: min(1100px, 94vw);
+  max-height: 90vh;
+  overflow: auto;
+  background: #0b1220;
+  border: 1px solid #334155;
+  border-radius: 10px;
+  padding: 12px;
+}
+.modal-body {
+  min-height: 220px;
+}
+.preview-image {
+  display: block;
+  max-width: 100%;
+  max-height: 70vh;
+  margin: 0 auto;
+  border: 1px solid #334155;
+  border-radius: 8px;
+}
+.hidden { display: none; }

web/style.css

@@ -1,325 +0,0 @@
-* {
-    margin: 0;
-    padding: 0;
-    box-sizing: border-box;
-}
-
-body {
-    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
-    background: #f5f5f5;
-    color: #333;
-}
-
-.hidden {
-    display: none !important;
-}
-
-/* Login Page */
-#login-page {
-    display: flex;
-    justify-content: center;
-    align-items: center;
-    min-height: 100vh;
-    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
-}
-
-.login-container {
-    background: white;
-    padding: 3rem;
-    border-radius: 10px;
-    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
-    text-align: center;
-    max-width: 400px;
-    width: 100%;
-}
-
-.login-container h1 {
-    margin-bottom: 0.5rem;
-    color: #667eea;
-}
-
-.login-container p {
-    color: #666;
-    margin-bottom: 2rem;
-}
-
-.login-buttons {
-    display: flex;
-    flex-direction: column;
-    gap: 1rem;
-}
-
-/* Main Page */
-#main-page {
-    min-height: 100vh;
-}
-
-header {
-    background: white;
-    padding: 1rem 2rem;
-    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
-    display: flex;
-    justify-content: space-between;
-    align-items: center;
-}
-
-header h1 {
-    color: #667eea;
-}
-
-.user-info {
-    display: flex;
-    align-items: center;
-    gap: 1rem;
-}
-
-nav {
-    background: white;
-    padding: 0 2rem;
-    border-bottom: 1px solid #e0e0e0;
-    display: flex;
-    gap: 1rem;
-}
-
-.nav-btn {
-    padding: 1rem 1.5rem;
-    background: none;
-    border: none;
-    border-bottom: 2px solid transparent;
-    cursor: pointer;
-    font-size: 1rem;
-    color: #666;
-    transition: all 0.2s;
-}
-
-.nav-btn:hover {
-    color: #667eea;
-}
-
-.nav-btn.active {
-    color: #667eea;
-    border-bottom-color: #667eea;
-}
-
-main {
-    max-width: 1200px;
-    margin: 2rem auto;
-    padding: 0 2rem;
-}
-
-.content-page {
-    background: white;
-    padding: 2rem;
-    border-radius: 8px;
-    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
-}
-
-.content-page h2 {
-    margin-bottom: 1.5rem;
-    color: #333;
-}
-
-/* Buttons */
-.btn {
-    padding: 0.75rem 1.5rem;
-    border: none;
-    border-radius: 5px;
-    cursor: pointer;
-    font-size: 1rem;
-    text-decoration: none;
-    display: inline-block;
-    transition: all 0.2s;
-}
-
-.btn-primary {
-    background: #667eea;
-    color: white;
-}
-
-.btn-primary:hover {
-    background: #5568d3;
-}
-
-.btn-secondary {
-    background: #6c757d;
-    color: white;
-}
-
-.btn-secondary:hover {
-    background: #5a6268;
-}
-
-.btn-google {
-    background: #db4437;
-    color: white;
-}
-
-.btn-google:hover {
-    background: #c23321;
-}
-
-.btn-discord {
-    background: #5865F2;
-    color: white;
-}
-
-.btn-discord:hover {
-    background: #4752C4;
-}
-
-/* Forms */
-.form-group {
-    margin-bottom: 1.5rem;
-}
-
-.form-group label {
-    display: block;
-    margin-bottom: 0.5rem;
-    font-weight: 500;
-    color: #333;
-}
-
-.form-group input,
-.form-group select {
-    width: 100%;
-    padding: 0.75rem;
-    border: 1px solid #ddd;
-    border-radius: 5px;
-    font-size: 1rem;
-}
-
-.form-group input:focus,
-.form-group select:focus {
-    outline: none;
-    border-color: #667eea;
-}
-
-/* Jobs List */
-#jobs-list {
-    display: grid;
-    gap: 1rem;
-}
-
-.job-card {
-    background: #f8f9fa;
-    padding: 1.5rem;
-    border-radius: 8px;
-    border-left: 4px solid #667eea;
-}
-
-.job-card h3 {
-    margin-bottom: 0.5rem;
-    color: #333;
-}
-
-.job-meta {
-    display: flex;
-    gap: 2rem;
-    margin: 1rem 0;
-    color: #666;
-    font-size: 0.9rem;
-}
-
-.job-status {
-    display: inline-block;
-    padding: 0.25rem 0.75rem;
-    border-radius: 20px;
-    font-size: 0.85rem;
-    font-weight: 500;
-}
-
-.job-status.pending {
-    background: #ffc107;
-    color: #000;
-}
-
-.job-status.running {
-    background: #17a2b8;
-    color: white;
-}
-
-.job-status.completed {
-    background: #28a745;
-    color: white;
-}
-
-.job-status.failed {
-    background: #dc3545;
-    color: white;
-}
-
-.job-status.cancelled {
-    background: #6c757d;
-    color: white;
-}
-
-.progress-bar {
-    width: 100%;
-    height: 8px;
-    background: #e0e0e0;
-    border-radius: 4px;
-    overflow: hidden;
-    margin: 1rem 0;
-}
-
-.progress-fill {
-    height: 100%;
-    background: #667eea;
-    transition: width 0.3s;
-}
-
-.job-actions {
-    margin-top: 1rem;
-    display: flex;
-    gap: 1rem;
-}
-
-/* Runners List */
-#runners-list {
-    display: grid;
-    gap: 1rem;
-}
-
-.runner-card {
-    background: #f8f9fa;
-    padding: 1.5rem;
-    border-radius: 8px;
-    border-left: 4px solid #28a745;
-}
-
-.runner-card h3 {
-    margin-bottom: 0.5rem;
-    color: #333;
-}
-
-.runner-info {
-    display: flex;
-    gap: 2rem;
-    margin-top: 1rem;
-    color: #666;
-    font-size: 0.9rem;
-}
-
-.runner-status {
-    display: inline-block;
-    padding: 0.25rem 0.75rem;
-    border-radius: 20px;
-    font-size: 0.85rem;
-    font-weight: 500;
-}
-
-.runner-status.online {
-    background: #28a745;
-    color: white;
-}
-
-.runner-status.offline {
-    background: #6c757d;
-    color: white;
-}
-
-.runner-status.busy {
-    background: #ffc107;
-    color: #000;
-}
-

web/tailwind.config.js

@@ -1,20 +0,0 @@
-/** @type {import('tailwindcss').Config} */
-export default {
-  content: [
-    "./index.html",
-    "./src/**/*.{js,ts,jsx,tsx}",
-  ],
-  darkMode: 'class',
-  theme: {
-    extend: {
-      colors: {
-        primary: {
-          500: '#f97316', // orange-500
-          600: '#ea580c', // orange-600
-        },
-      },
-    },
-  },
-  plugins: [],
-}
-

web/templates/admin.html

@@ -0,0 +1,49 @@
+{{ define "page_admin" }}
+{{ $view := .Data }}
+<section class="card">
+  <h1>Admin Panel</h1>
+  <div class="check-row">
+    <label>
+      <input id="registration-enabled" type="checkbox" {{ if index $view "registration_enabled" }}checked{{ end }}>
+      Allow new registrations
+    </label>
+    <button id="save-registration" class="btn">Save</button>
+  </div>
+</section>
+
+<section class="card">
+  <h2>Runners</h2>
+  <div id="admin-runners"
+       hx-get="/ui/fragments/admin/runners"
+       hx-trigger="load, every 6s"
+       hx-swap="innerHTML">
+    <p>Loading runners...</p>
+  </div>
+</section>
+
+<section class="card">
+  <h2>Users</h2>
+  <div id="admin-users"
+       hx-get="/ui/fragments/admin/users"
+       hx-trigger="load, every 10s"
+       hx-swap="innerHTML">
+    <p>Loading users...</p>
+  </div>
+</section>
+
+<section class="card">
+  <div class="section-head">
+    <h2>Runner API Keys</h2>
+    <button id="create-api-key" class="btn">Create API Key</button>
+  </div>
+  <div id="admin-apikeys"
+       hx-get="/ui/fragments/admin/apikeys"
+       hx-trigger="load, every 10s"
+       hx-swap="innerHTML">
+    <p>Loading API keys...</p>
+  </div>
+</section>
+
+<p id="admin-message" class="alert notice hidden"></p>
+<p id="admin-error" class="alert error hidden"></p>
+{{ end }}

web/templates/base.html

@@ -0,0 +1,48 @@
+{{ define "base" }}
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>{{ .Title }} - JiggaBlend</title>
+  <link rel="stylesheet" href="/assets/style.css">
+  <script src="https://unpkg.com/htmx.org@1.9.12"></script>
+</head>
+<body>
+  {{ if .User }}
+  <header class="topbar">
+    <div class="brand">JiggaBlend</div>
+    <nav class="nav">
+      <a href="/jobs" class="{{ if eq .CurrentPath "/jobs" }}active{{ end }}">Jobs</a>
+      <a href="/jobs/new" class="{{ if eq .CurrentPath "/jobs/new" }}active{{ end }}">Submit</a>
+      {{ if .User.IsAdmin }}<a href="/admin" class="{{ if eq .CurrentPath "/admin" }}active{{ end }}">Admin</a>{{ end }}
+    </nav>
+    <div class="account">
+      <span>{{ .User.Name }}</span>
+      <form method="post" action="/logout">
+        <button type="submit" class="btn subtle">Logout</button>
+      </form>
+    </div>
+  </header>
+  {{ end }}
+
+  <main class="container">
+    {{ if .Error }}<div class="alert error">{{ .Error }}</div>{{ end }}
+    {{ if .Notice }}<div class="alert notice">{{ .Notice }}</div>{{ end }}
+    {{ if eq .ContentTemplate "page_login" }}
+      {{ template "page_login" . }}
+    {{ else if eq .ContentTemplate "page_jobs" }}
+      {{ template "page_jobs" . }}
+    {{ else if eq .ContentTemplate "page_jobs_new" }}
+      {{ template "page_jobs_new" . }}
+    {{ else if eq .ContentTemplate "page_job_show" }}
+      {{ template "page_job_show" . }}
+    {{ else if eq .ContentTemplate "page_admin" }}
+      {{ template "page_admin" . }}
+    {{ end }}
+  </main>
+
+  {{ if .PageScript }}<script src="{{ .PageScript }}"></script>{{ end }}
+</body>
+</html>
+{{ end }}

web/templates/job_new.html

@@ -0,0 +1,60 @@
+{{ define "page_jobs_new" }}
+<section id="job-upload-section" class="card">
+  <h1>Create Render Job</h1>
+  <div class="stepper">
+    <div id="step-upload" class="step active">1. Upload & Analyze</div>
+    <div id="step-config" class="step">2. Review & Submit</div>
+  </div>
+
+  <form id="upload-analyze-form" class="stack">
+    <label>Upload Blend/ZIP
+      <input type="file" id="source-file" name="file" accept=".blend,.zip,application/zip,application/x-zip-compressed" required>
+    </label>
+    <label id="main-blend-wrapper" class="hidden">Main Blend (for ZIP with multiple .blend files)
+      <select id="main-blend-select"></select>
+    </label>
+    <button type="submit" class="btn primary">Upload and Analyze</button>
+  </form>
+
+  <div id="upload-status" class="stack hidden"></div>
+  <p id="job-create-error" class="alert error hidden"></p>
+</section>
+
+<section id="job-config-section" class="card hidden">
+  <h2>Review Render Settings</h2>
+  <p class="muted">Values are prefilled from extracted metadata; adjust before submission.</p>
+  <div id="metadata-preview" class="stack"></div>
+
+  <form id="job-config-form" class="stack">
+    <label>Job Name
+      <input type="text" id="job-name" name="name" required>
+    </label>
+    <div class="grid-2">
+      <label>Frame Start
+        <input type="number" id="frame-start" name="frame_start" min="0" required>
+      </label>
+      <label>Frame End
+        <input type="number" id="frame-end" name="frame_end" min="0" required>
+      </label>
+    </div>
+    <label>Output Format
+      <select name="output_format" id="output-format">
+        <option value="EXR">EXR</option>
+        <option value="EXR_264_MP4">EXR + H264 MP4</option>
+        <option value="EXR_AV1_MP4">EXR + AV1 MP4</option>
+        <option value="EXR_VP9_WEBM">EXR + VP9 WEBM</option>
+      </select>
+    </label>
+    <label>Blender Version (optional)
+      <select name="blender_version" id="blender-version">
+        <option value="">Auto-detect from file</option>
+      </select>
+    </label>
+    <div class="check-row">
+      <label><input type="checkbox" id="unhide-objects" name="unhide_objects"> Unhide objects/collections</label>
+      <label><input type="checkbox" id="enable-execution" name="enable_execution"> Enable auto-execution in Blender</label>
+    </div>
+    <button type="submit" class="btn primary">Create Job</button>
+  </form>
+</section>
+{{ end }}

web/templates/job_show.html

@@ -0,0 +1,97 @@
+{{ define "page_job_show" }}
+{{ $view := .Data }}
+{{ $job := index $view "job" }}
+<section class="card">
+  <div class="section-head">
+    <h1>Job #{{ $job.ID }} - {{ $job.Name }}</h1>
+    <a href="/jobs" class="btn subtle">Back</a>
+  </div>
+  <p>Status: <span id="job-status-badge" class="status {{ statusClass $job.Status }}">{{ $job.Status }}</span></p>
+  <p>Progress: <span id="job-progress-text">{{ progressInt $job.Progress }}%</span></p>
+  <div class="progress">
+    <div class="progress-fill" data-progress="{{ progressInt $job.Progress }}"></div>
+  </div>
+  <div class="row">
+    {{ if $job.FrameStart }}<span>Frames: {{ derefInt $job.FrameStart }}{{ if $job.FrameEnd }}-{{ derefInt $job.FrameEnd }}{{ end }}</span>{{ end }}
+    {{ if $job.OutputFormat }}<span>Format: {{ derefString $job.OutputFormat }}</span>{{ end }}
+    <span>Created: {{ formatTime $job.CreatedAt }}</span>
+  </div>
+  <div class="section-head">
+    <button id="cancel-job-btn" class="btn{{ if not (or (eq $job.Status "pending") (eq $job.Status "running")) }} hidden{{ end }}" data-cancel-job="{{ $job.ID }}">Cancel Job</button>
+    <button id="delete-job-btn" class="btn danger{{ if not (or (eq $job.Status "completed") (eq $job.Status "failed") (eq $job.Status "cancelled")) }} hidden{{ end }}" data-delete-job="{{ $job.ID }}">Delete Job</button>
+  </div>
+</section>
+
+<section class="card">
+  <div class="section-head">
+    <h2>Tasks</h2>
+    <button id="tasks-refresh" class="btn tiny">Refresh tasks</button>
+  </div>
+  <div id="tasks-fragment"
+       hx-get="/ui/fragments/jobs/{{ $job.ID }}/tasks"
+       hx-trigger="load"
+       hx-swap="innerHTML">
+    <p>Loading tasks...</p>
+  </div>
+</section>
+
+<section class="card">
+  <div class="section-head">
+    <h2>Files</h2>
+    <div class="row">
+      <a href="/api/jobs/{{ $job.ID }}/files/exr-zip" class="btn tiny">Download all EXR (.zip)</a>
+      <button id="files-refresh" class="btn tiny">Refresh files</button>
+    </div>
+  </div>
+  <div id="files-fragment"
+       hx-get="/ui/fragments/jobs/{{ $job.ID }}/files"
+       hx-trigger="load"
+       hx-swap="innerHTML">
+    <p>Loading files...</p>
+  </div>
+</section>
+
+<div id="exr-preview-modal" class="modal hidden" role="dialog" aria-modal="true" aria-labelledby="exr-preview-title">
+  <div class="modal-backdrop" data-modal-close></div>
+  <div class="modal-content">
+    <div class="section-head">
+      <h3 id="exr-preview-title">EXR Preview</h3>
+      <button type="button" id="exr-preview-close" class="btn tiny subtle" data-modal-close>Close</button>
+    </div>
+    <p id="exr-preview-name" class="muted"></p>
+    <div class="modal-body">
+      <img id="exr-preview-image" alt="EXR preview" class="preview-image hidden">
+      <p id="exr-preview-loading" class="muted">Loading preview...</p>
+      <p id="exr-preview-error" class="alert error hidden"></p>
+    </div>
+  </div>
+</div>
+
+<section class="card">
+  <div class="section-head">
+    <h2>Task Logs</h2>
+    <span id="task-log-status" class="muted">Select a task to view logs.</span>
+  </div>
+  <div class="log-controls">
+    <label>Task
+      <select id="task-log-task-id">
+        <option value="">Choose a task...</option>
+      </select>
+    </label>
+    <label>Level
+      <select id="task-log-level-filter">
+        <option value="">All</option>
+        <option value="INFO">INFO</option>
+        <option value="WARN">WARN</option>
+        <option value="ERROR">ERROR</option>
+        <option value="DEBUG">DEBUG</option>
+      </select>
+    </label>
+    <label class="log-toggle"><input id="task-log-auto-refresh" type="checkbox" checked> Auto refresh</label>
+    <label class="log-toggle"><input id="task-log-follow" type="checkbox" checked> Follow tail</label>
+    <button id="task-log-refresh" class="btn">Refresh now</button>
+    <button id="task-log-copy" class="btn subtle">Copy logs</button>
+  </div>
+  <div id="task-log-output" class="logs log-lines"></div>
+</section>
+{{ end }}

web/templates/jobs.html

@@ -0,0 +1,16 @@
+{{ define "page_jobs" }}
+<section class="card">
+  <div class="section-head">
+    <h1>Your Jobs</h1>
+    <a href="/jobs/new" class="btn primary">New Job</a>
+  </div>
+  <div
+    id="jobs-fragment"
+    hx-get="/ui/fragments/jobs"
+    hx-trigger="load, every 5s"
+    hx-swap="innerHTML"
+  >
+    <p>Loading jobs...</p>
+  </div>
+</section>
+{{ end }}

web/templates/login.html

@@ -0,0 +1,41 @@
+{{ define "page_login" }}
+<section class="card narrow">
+  <h1>Sign in to JiggaBlend</h1>
+  {{ $view := .Data }}
+  {{ if index $view "error" }}
+  <div class="alert error">Login error: {{ index $view "error" }}</div>
+  {{ end }}
+
+  <div class="auth-grid">
+    {{ if index $view "google_enabled" }}
+    <a class="btn" href="/api/auth/google/login">Continue with Google</a>
+    {{ end }}
+    {{ if index $view "discord_enabled" }}
+    <a class="btn" href="/api/auth/discord/login">Continue with Discord</a>
+    {{ end }}
+  </div>
+
+  {{ if index $view "local_enabled" }}
+  <div class="split">
+    <form id="login-form" class="stack">
+      <h2>Local Login</h2>
+      <label>Email or Username<input type="text" name="username" required></label>
+      <label>Password<input type="password" name="password" required></label>
+      <button type="submit" class="btn primary">Login</button>
+    </form>
+
+    <form id="register-form" class="stack">
+      <h2>Register</h2>
+      <label>Name<input type="text" name="name" required></label>
+      <label>Email<input type="email" name="email" required></label>
+      <label>Password<input type="password" name="password" minlength="8" required></label>
+      <button type="submit" class="btn">Register</button>
+    </form>
+  </div>
+  {{ else }}
+  <p>Local authentication is disabled.</p>
+  {{ end }}
+
+  <p id="auth-error" class="alert error hidden"></p>
+</section>
+{{ end }}

web/templates/partials/admin_apikeys.html

@@ -0,0 +1,36 @@
+{{ define "partial_admin_apikeys" }}
+{{ $keys := index . "keys" }}
+{{ if not $keys }}
+<p>No API keys generated yet.</p>
+{{ else }}
+<table class="table">
+  <thead>
+    <tr>
+      <th>ID</th>
+      <th>Name</th>
+      <th>Scope</th>
+      <th>Prefix</th>
+      <th>Active</th>
+      <th>Created</th>
+      <th>Actions</th>
+    </tr>
+  </thead>
+  <tbody>
+  {{ range $key := $keys }}
+    <tr>
+      <td>{{ $key.ID }}</td>
+      <td>{{ $key.Name }}</td>
+      <td>{{ $key.Scope }}</td>
+      <td>{{ $key.Key }}</td>
+      <td>{{ if $key.IsActive }}yes{{ else }}no{{ end }}</td>
+      <td>{{ formatTime $key.CreatedAt }}</td>
+      <td class="row">
+        <button class="btn tiny" data-revoke-apikey="{{ $key.ID }}">Revoke</button>
+        <button class="btn tiny danger" data-delete-apikey="{{ $key.ID }}">Delete</button>
+      </td>
+    </tr>
+  {{ end }}
+  </tbody>
+</table>
+{{ end }}
+{{ end }}

web/templates/partials/admin_runners.html

@@ -0,0 +1,35 @@
+{{ define "partial_admin_runners" }}
+{{ $runners := index . "runners" }}
+{{ if not $runners }}
+<p>No runners registered.</p>
+{{ else }}
+<table class="table">
+  <thead>
+    <tr>
+      <th>ID</th>
+      <th>Name</th>
+      <th>Host</th>
+      <th>Status</th>
+      <th>Priority</th>
+      <th>Heartbeat</th>
+      <th>Actions</th>
+    </tr>
+  </thead>
+  <tbody>
+  {{ range $runner := $runners }}
+    <tr>
+      <td>{{ $runner.ID }}</td>
+      <td>{{ $runner.Name }}</td>
+      <td>{{ $runner.Hostname }}</td>
+      <td><span class="status {{ statusClass $runner.Status }}">{{ $runner.Status }}</span></td>
+      <td>{{ $runner.Priority }}</td>
+      <td>{{ formatTime $runner.LastHeartbeat }}</td>
+      <td class="row">
+        <button class="btn tiny danger" data-delete-runner="{{ $runner.ID }}">Delete</button>
+      </td>
+    </tr>
+  {{ end }}
+  </tbody>
+</table>
+{{ end }}
+{{ end }}

web/templates/partials/admin_users.html

@@ -0,0 +1,44 @@
+{{ define "partial_admin_users" }}
+{{ $users := index . "users" }}
+{{ $currentUserID := index . "current_user_id" }}
+{{ if not $users }}
+<p>No users found.</p>
+{{ else }}
+<table class="table">
+  <thead>
+    <tr>
+      <th>ID</th>
+      <th>Name</th>
+      <th>Email</th>
+      <th>Provider</th>
+      <th>Admin</th>
+      <th>Created</th>
+      <th>Actions</th>
+    </tr>
+  </thead>
+  <tbody>
+  {{ range $user := $users }}
+    <tr>
+      <td>{{ $user.ID }}</td>
+      <td>{{ $user.Name }}</td>
+      <td>{{ $user.Email }}</td>
+      <td>{{ if $user.OAuthProvider }}{{ $user.OAuthProvider }}{{ else }}local{{ end }}</td>
+      <td>{{ if $user.IsAdmin }}yes{{ else }}no{{ end }}</td>
+      <td>{{ formatTime $user.CreatedAt }}</td>
+      <td class="row">
+        {{ if and $user.IsAdmin (eq $user.ID $currentUserID) }}
+        <button class="btn tiny" disabled title="You cannot revoke your own admin status">
+          Revoke Admin
+        </button>
+        {{ else }}
+        <button class="btn tiny" data-set-admin="{{ $user.ID }}" data-admin-value="{{ if $user.IsAdmin }}false{{ else }}true{{ end }}">
+          {{ if $user.IsAdmin }}Revoke Admin{{ else }}Make Admin{{ end }}
+        </button>
+        {{ end }}
+      </td>
+    </tr>
+  {{ end }}
+  </tbody>
+</table>
+{{ end }}
+{{ end }}

web/templates/partials/job_files.html

@@ -0,0 +1,82 @@
+{{ define "partial_job_files" }}
+{{ $jobID := index . "job_id" }}
+{{ $files := index . "files" }}
+{{ $isAdmin := index . "is_admin" }}
+{{ $adminInputFiles := index . "admin_input_files" }}
+{{ if not $files }}
+<p>No output files found yet.</p>
+{{ else }}
+<table class="table">
+  <thead>
+    <tr>
+      <th>ID</th>
+      <th>Name</th>
+      {{ if $isAdmin }}<th>Type</th>{{ end }}
+      <th>Size</th>
+      <th>Created</th>
+      <th>Actions</th>
+    </tr>
+  </thead>
+  <tbody>
+  {{ range $file := $files }}
+    <tr>
+      <td>{{ $file.ID }}</td>
+      <td>{{ $file.FileName }}</td>
+      {{ if $isAdmin }}<td>{{ $file.FileType }}</td>{{ end }}
+      <td>{{ $file.FileSize }}</td>
+      <td>{{ formatTime $file.CreatedAt }}</td>
+      <td class="row">
+        <a class="btn tiny" href="/api/jobs/{{ $jobID }}/files/{{ $file.ID }}/download">Download</a>
+        {{ if hasSuffixFold $file.FileName ".exr" }}
+        <button
+          type="button"
+          class="btn tiny"
+          data-exr-preview-url="/api/jobs/{{ $jobID }}/files/{{ $file.ID }}/preview-exr"
+          data-exr-preview-name="{{ $file.FileName }}"
+        >
+          Preview
+        </button>
+        {{ end }}
+      </td>
+    </tr>
+  {{ end }}
+  </tbody>
+</table>
+{{ end }}
+
+{{ if $isAdmin }}
+<details class="admin-context">
+  <summary>Admin: context/input files</summary>
+  {{ if not $adminInputFiles }}
+  <p>No context/input files found.</p>
+  {{ else }}
+  <table class="table">
+    <thead>
+      <tr>
+        <th>ID</th>
+        <th>Name</th>
+        <th>Type</th>
+        <th>Size</th>
+        <th>Created</th>
+        <th>Download</th>
+      </tr>
+    </thead>
+    <tbody>
+    {{ range $file := $adminInputFiles }}
+      <tr>
+        <td>{{ $file.ID }}</td>
+        <td>{{ $file.FileName }}</td>
+        <td>{{ $file.FileType }}</td>
+        <td>{{ $file.FileSize }}</td>
+        <td>{{ formatTime $file.CreatedAt }}</td>
+        <td>
+          <a class="btn tiny" href="/api/jobs/{{ $jobID }}/files/{{ $file.ID }}/download">Download</a>
+        </td>
+      </tr>
+    {{ end }}
+    </tbody>
+  </table>
+  {{ end }}
+</details>
+{{ end }}
+{{ end }}

web/templates/partials/job_tasks.html

@@ -0,0 +1,37 @@
+{{ define "partial_job_tasks" }}
+{{ $tasks := index . "tasks" }}
+{{ if not $tasks }}
+<p>No tasks yet.</p>
+{{ else }}
+<table class="table">
+  <thead>
+    <tr>
+      <th>ID</th>
+      <th>Type</th>
+      <th>Status</th>
+      <th>Frame(s)</th>
+      <th>Step</th>
+      <th>Retries</th>
+      <th>Error</th>
+      <th>Logs</th>
+    </tr>
+  </thead>
+  <tbody>
+  {{ range $task := $tasks }}
+    <tr>
+      <td>{{ $task.ID }}</td>
+      <td>{{ $task.TaskType }}</td>
+      <td><span class="status {{ statusClass $task.Status }}">{{ $task.Status }}</span></td>
+      <td>{{ $task.Frame }}{{ if $task.FrameEnd }}-{{ derefInt $task.FrameEnd }}{{ end }}</td>
+      <td>{{ if $task.CurrentStep }}{{ $task.CurrentStep }}{{ else }}-{{ end }}</td>
+      <td>{{ $task.RetryCount }}</td>
+      <td>{{ if $task.Error }}{{ $task.Error }}{{ else }}-{{ end }}</td>
+      <td>
+        <button class="btn tiny" data-view-logs-task-id="{{ $task.ID }}">View logs</button>
+      </td>
+    </tr>
+  {{ end }}
+  </tbody>
+</table>
+{{ end }}
+{{ end }}

web/templates/partials/jobs_table.html

@@ -0,0 +1,40 @@
+{{ define "partial_jobs_table" }}
+{{ $jobs := index . "jobs" }}
+{{ if not $jobs }}
+<p>No jobs yet. Submit one to get started.</p>
+{{ else }}
+<table class="table">
+  <thead>
+    <tr>
+      <th>Name</th>
+      <th>Status</th>
+      <th>Progress</th>
+      <th>Frames</th>
+      <th>Format</th>
+      <th>Created</th>
+      <th>Actions</th>
+    </tr>
+  </thead>
+  <tbody>
+  {{ range $job := $jobs }}
+    <tr>
+      <td><a class="job-link" href="/jobs/{{ $job.ID }}">{{ $job.Name }}</a></td>
+      <td><span class="status {{ statusClass $job.Status }}">{{ $job.Status }}</span></td>
+      <td>{{ progressInt $job.Progress }}%</td>
+      <td>{{ if $job.FrameStart }}{{ derefInt $job.FrameStart }}{{ end }}{{ if $job.FrameEnd }}-{{ derefInt $job.FrameEnd }}{{ end }}</td>
+      <td>{{ if $job.OutputFormat }}{{ derefString $job.OutputFormat }}{{ else }}-{{ end }}</td>
+      <td>{{ formatTime $job.CreatedAt }}</td>
+      <td class="row">
+        {{ if or (eq $job.Status "pending") (eq $job.Status "running") }}
+        <button class="btn tiny" data-cancel-job="{{ $job.ID }}">Cancel</button>
+        {{ end }}
+        {{ if or (eq $job.Status "completed") (eq $job.Status "failed") (eq $job.Status "cancelled") }}
+        <button class="btn tiny danger" data-delete-job="{{ $job.ID }}">Delete</button>
+        {{ end }}
+      </td>
+    </tr>
+  {{ end }}
+  </tbody>
+</table>
+{{ end }}
+{{ end }}

web/vite.config.js

@@ -1,19 +0,0 @@
-import { defineConfig } from 'vite'
-import react from '@vitejs/plugin-react'
-
-export default defineConfig({
-  plugins: [react()],
-  build: {
-    outDir: 'dist',
-    emptyOutDir: true,
-  },
-  server: {
-    proxy: {
-      '/api': {
-        target: 'http://localhost:8080',
-        changeOrigin: true,
-      },
-    },
-  },
-})
-