Add tests for main package, manager, and various components

- Introduced unit tests for the main package to ensure compilation.
- Added tests for the manager, including validation of upload sessions and handling of Blender binary paths.
- Implemented tests for job token generation and validation, ensuring security and integrity.
- Created tests for configuration management and database schema to verify functionality.
- Added tests for logger and runner components to enhance overall test coverage and reliability.

pkg/types/types_test.go

@@ -0,0 +1,49 @@
+package types
+
+import (
+	"encoding/json"
+	"testing"
+	"time"
+)
+
+func TestJobJSON_RoundTrip(t *testing.T) {
+	now := time.Now().UTC().Truncate(time.Second)
+	frameStart, frameEnd := 1, 10
+	format := "PNG"
+	job := Job{
+		ID:           42,
+		UserID:       7,
+		JobType:      JobTypeRender,
+		Name:         "demo",
+		Status:       JobStatusPending,
+		Progress:     12.5,
+		FrameStart:   &frameStart,
+		FrameEnd:     &frameEnd,
+		OutputFormat: &format,
+		BlendMetadata: &BlendMetadata{
+			FrameStart: 1,
+			FrameEnd:   10,
+			RenderSettings: RenderSettings{
+				ResolutionX: 1920,
+				ResolutionY: 1080,
+				FrameRate:   24.0,
+			},
+		},
+		CreatedAt: now,
+	}
+
+	raw, err := json.Marshal(job)
+	if err != nil {
+		t.Fatalf("marshal failed: %v", err)
+	}
+
+	var out Job
+	if err := json.Unmarshal(raw, &out); err != nil {
+		t.Fatalf("unmarshal failed: %v", err)
+	}
+
+	if out.ID != job.ID || out.JobType != JobTypeRender || out.BlendMetadata == nil {
+		t.Fatalf("unexpected roundtrip result: %+v", out)
+	}
+}
+