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

vfs/predictive/predictive_test.go

@@ -0,0 +1,41 @@
+package predictive
+
+import (
+	"testing"
+)
+
+func TestAccessPredictor_Basic(t *testing.T) {
+	t.Parallel()
+	p := NewAccessPredictor()
+	p.RecordSequence("a/b/c1", "a/b/c2")
+	next := p.PredictNext("a/b/c1")
+	if len(next) == 0 {
+		t.Log("no predictions (cold start ok)")
+	}
+	_ = p.IsPredictedAccess("a/b/c2")
+}
+
+func TestCacheWarmer_Basic(t *testing.T) {
+	t.Parallel()
+	cw := NewCacheWarmer()
+	cw.RecordAccess("k1", 100)
+	cw.RecordAccess("k1", 100)
+	pop := cw.GetPopularContent(5)
+	_ = len(pop)
+	_ = NewWarmingStats()
+	_ = NewActiveWarmer("k", 1, "test")
+}
+
+// TestPredictiveCacheManager_ConstructAndStop exercises New + RecordAccess under load + worker + Stop (no leak/panic; issue11).
+func TestPredictiveCacheManager_ConstructAndStop(t *testing.T) {
+	t.Parallel()
+	pm := NewPredictiveCacheManager()
+	for i := 0; i < 20; i++ {
+		k := "k" + string(rune('0'+i%5))
+		pm.RecordAccess(k, "", 100) // use actual API (RecordAccess); exercises warmer+predictor paths
+	}
+	// Stop exercises wg + cancel for workers
+	pm.Stop()
+	// double stop safe
+	pm.Stop()
+}