daemon: integrate QoL slices 1-5 (model/rename/catalog, history deletes, stats, repo prepare+imageUsed+built) — 95.3% cover green

daemon/hub.go

@@ -30,6 +30,9 @@ const (
 	evBye              string = "bye"
 	evPrompt           string = "prompt"
 	evAbort            string = "abort"
+	evSetModel         string = "set_model"
+	evRename           string = "rename"
+	evErrorNotice      string = "error_notice"
 	frameSessionList   string = "session_list"
 	frameEvents        string = "events"
 	frameSpawnStatus   string = "spawn_status"
@@ -647,6 +650,29 @@ func (h *Hub) Abort(sessionID string) error {
 	})
 }
 
+// SetModel routes a set_model frame to the live plugin conn for sessionID.
+func (h *Hub) SetModel(sessionID, provider, modelID string) error {
+	return h.sendToAgent(sessionID, map[string]any{
+		"v":         daemonVersion,
+		"type":      evSetModel,
+		"sessionId": sessionID,
+		"ts":        time.Now().UnixMilli(),
+		"provider":  provider,
+		"modelId":   modelID,
+	})
+}
+
+// Rename routes a rename frame to the live plugin conn for sessionID.
+func (h *Hub) Rename(sessionID, name string) error {
+	return h.sendToAgent(sessionID, map[string]any{
+		"v":         daemonVersion,
+		"type":      evRename,
+		"sessionId": sessionID,
+		"ts":        time.Now().UnixMilli(),
+		"name":      name,
+	})
+}
+
 func (h *Hub) sendToAgent(sessionID string, frameBody map[string]any) error {
 	b, err := json.Marshal(frameBody)
 	if err != nil {
@@ -689,3 +715,10 @@ func (h *Hub) ServeWebWS(w http.ResponseWriter, r *http.Request) {
 		c.deliverControl(payload)
 	}
 }
+
+// OnlineCount reports how many agent WS connections are currently live.
+func (h *Hub) OnlineCount() int {
+	h.mu.Lock()
+	defer h.mu.Unlock()
+	return len(h.agents)
+}