feat: broadcast pilot agent traces via WebSocket for live status on reconnect

Agent trace logs are now stored in-memory (pilotRunStore) and broadcast
through the existing /ws/crm-updates WebSocket channel. When a client
reconnects, it receives a pilot.catchup with all accumulated logs so the
user sees agent progress even after page reload. Three new WS event
types: pilot.trace, pilot.finished, pilot.catchup.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/app/composables/usePilotChat.ts

@@ -689,6 +689,24 @@ export function usePilotChat(opts: {
     pushPilotNote,
     refetchChatMessages,
     refetchChatConversations,
+    // realtime pilot trace handlers (called from useCrmRealtime)
+    handleRealtimePilotTrace(log: { text: string; at: string }) {
+      const text = String(log.text ?? "").trim();
+      if (!text) return;
+      // Mark as sending so the UI shows live-log panel
+      if (!pilotSending.value) pilotSending.value = true;
+      pilotLiveLogs.value = [
+        ...pilotLiveLogs.value,
+        { id: `ws-${Date.now()}-${Math.random()}`, text, at: log.at || new Date().toISOString() },
+      ];
+    },
+    async handleRealtimePilotFinished() {
+      pilotSending.value = false;
+      livePilotUserText.value = "";
+      livePilotAssistantText.value = "";
+      pilotLiveLogs.value = [];
+      await Promise.all([refetchChatMessages(), refetchChatConversations(), opts.refetchAllCrmQueries()]);
+    },
     // cleanup
     destroyPilotWaveSurfer,
   };