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/useCrmRealtime.ts

@@ -9,10 +9,14 @@ export type RealtimeNewMessage = {
   at: string;
 };
 
+export type RealtimePilotTrace = { text: string; at: string };
+
 export function useCrmRealtime(opts: {
   isAuthenticated: () => boolean;
   onDashboardChanged: () => Promise<void>;
   onNewMessage?: (msg: RealtimeNewMessage) => void;
+  onPilotTrace?: (log: RealtimePilotTrace) => void;
+  onPilotFinished?: () => void;
 }) {
   const crmRealtimeState = ref<"idle" | "connecting" | "open" | "error">("idle");
   let crmRealtimeSocket: WebSocket | null = null;
@@ -116,6 +120,17 @@ export function useCrmRealtime(opts: {
         if (payload.type === "message.new" && opts.onNewMessage) {
           opts.onNewMessage(payload as unknown as RealtimeNewMessage);
         }
+        if (payload.type === "pilot.trace" && opts.onPilotTrace) {
+          opts.onPilotTrace({ text: String(payload.text ?? ""), at: String(payload.at ?? "") });
+        }
+        if (payload.type === "pilot.catchup" && opts.onPilotTrace && Array.isArray(payload.logs)) {
+          for (const log of payload.logs) {
+            opts.onPilotTrace({ text: String((log as any).text ?? ""), at: String((log as any).at ?? "") });
+          }
+        }
+        if (payload.type === "pilot.finished" && opts.onPilotFinished) {
+          opts.onPilotFinished();
+        }
       } catch {
         // ignore malformed realtime payloads
       }