feat(keeld): construct AW memory store, nop fallback when AW is down

cmd/keeld/main.go

@@ -14,10 +14,12 @@ import (
 	"time"
 
 	"keel/internal/ai"
+	"keel/internal/aw"
 	"keel/internal/enforce"
 	"keel/internal/evidence"
 	"keel/internal/harness"
 	"keel/internal/knowledge"
+	"keel/internal/memory"
 	"keel/internal/mode"
 	"keel/internal/mode/focus"
 	"keel/internal/mode/offscreen"
@@ -63,11 +65,28 @@ func main() {
 			return harness.Services{}, fmt.Errorf("%w: %v", settings.ErrInvalidBackend, err)
 		}
 		svc := ai.NewService(backend)
+
+		// Defend against a hand-blanked aw_url: SeedFromEnv defaults this only on
+		// first run, but Load returns whatever the JSON file holds on later starts.
+		awURL := s.AWURL
+		if awURL == "" {
+			awURL = "http://localhost:5600"
+		}
+		var mem memory.Store = memory.NewNop()
+		awc := aw.New(awURL)
+		if err := awc.EnsureBucket(context.Background(), "keel.events", "keel.event", "keel"); err != nil {
+			log.Printf("memory: AW unavailable at %s (%v); running without memory", awURL, err)
+		} else {
+			mem = memory.NewAWStore(awc, "keel.events")
+			log.Printf("memory: keel.events ready at %s", awURL)
+		}
+
 		return harness.Services{
 			AI:        svc,
 			Tasks:     tasks.NewMarvin(s.MarvinCmd),
 			Knowledge: knowledge.NewFileSource(s.KnowledgePath),
 			Enforce:   enforce.NewGuard(),
+			Memory:    mem,
 			Clock:     time.Now,
 		}, nil
 	}

internal/harness/services.go

@@ -6,18 +6,21 @@ import (
 	"keel/internal/ai"
 	"keel/internal/enforce"
 	"keel/internal/knowledge"
+	"keel/internal/memory"
 	"keel/internal/tasks"
 )
 
 // Services is the shared infrastructure every mode receives from the harness.
 // Dir is the mode's namespaced persistence directory (~/.keel/modes/<kind>);
 // modes build their own file paths under it. Notify fires the harness change
-// listeners (web SSE + status bar).
+// listeners (web SSE + status bar). Memory is Keel's durable cross-run event
+// store (AW-backed, or a nop when AW is down).
 type Services struct {
 	AI        *ai.Service
 	Tasks     tasks.Provider
 	Knowledge knowledge.Source
 	Enforce   enforce.Guard
+	Memory    memory.Store
 	Clock     func() time.Time
 	Dir       string
 	Notify    func()