Remove plans/ directory (P0/P1/P2 work complete)

vfs/adaptive/adaptive.go

@@ -1,7 +1,7 @@
 package adaptive
 
-// Package adaptive: experimental / not yet active after P1-04 prune.
-// Retained for potential P2 integration. Not used at runtime (pruned from steamcache).
+// Package adaptive: experimental workload analyzer and adaptive cache manager.
+// Not active at runtime (pruned from the main request path in earlier hardening work).
 
 import (
 	"context"
@@ -40,6 +40,7 @@ type WorkloadAnalyzer struct {
 	analysisInterval time.Duration
 	ctx              context.Context
 	cancel           context.CancelFunc
+	wg               sync.WaitGroup
 }
 
 // AccessInfo tracks access patterns for individual files
@@ -74,6 +75,7 @@ func NewWorkloadAnalyzer(analysisInterval time.Duration) *WorkloadAnalyzer {
 		cancel:           cancel,
 	}
 
+	analyzer.wg.Add(1)
 	// Start background analysis with much longer interval to reduce overhead
 	go analyzer.analyzePatterns()
 
@@ -120,6 +122,7 @@ func (wa *WorkloadAnalyzer) RecordAccess(key string, size int64) {
 
 // analyzePatterns analyzes access patterns in the background
 func (wa *WorkloadAnalyzer) analyzePatterns() {
+	defer wa.wg.Done()
 	ticker := time.NewTicker(wa.analysisInterval)
 	defer ticker.Stop()
 
@@ -218,6 +221,7 @@ func (wa *WorkloadAnalyzer) GetAccessInfo(key string) *AccessInfo {
 // Stop stops the workload analyzer
 func (wa *WorkloadAnalyzer) Stop() {
 	wa.cancel()
+	wa.wg.Wait()
 }
 
 // NewAdaptiveCacheManager creates a new adaptive cache manager