add navigation to return to Project Manager

gadget-code/frontend/src/pages/ChatSessionView.tsx

@@ -97,13 +97,19 @@ export default function ChatSessionView() {
     projectRef.current = project;
   }, [project]);
 
-  // Start heartbeat when session+project are loaded, release lock on unmount
+  // Start heartbeat when session+project are loaded
   useEffect(() => {
     if (session && project) {
       socketClient.startSessionHeartbeat();
     }
     return () => {
       socketClient.stopSessionHeartbeat();
+    };
+  }, [session, project]);
+
+  // Release session lock on unmount only
+  useEffect(() => {
+    return () => {
       const droneJson = localStorage.getItem('dtp_drone_registration');
       if (droneJson && sessionRef.current && projectRef.current) {
         try {
@@ -118,7 +124,7 @@ export default function ChatSessionView() {
         }
       }
     };
-  }, [session, project]);
+  }, []);
 
   const loadSessionData = async () => {
     try {
@@ -954,6 +960,15 @@ export default function ChatSessionView() {
             <h3 className="text-sm font-semibold text-text-secondary uppercase tracking-wider">
               Project
             </h3>
+            <button
+              title="Project Manager"
+              onClick={() => navigate(`/projects/${projectId}`)}
+              className="text-text-muted hover:text-text-primary transition-colors"
+            >
+              <svg className="w-4 h-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 12l2-2m0 0l7-7 7 7M5 10v10a1 1 0 001 1h3m10-11l2 2m-2-2v10a1 1 0 01-1 1h-3m-6 0a1 1 0 001-1v-4a1 1 0 011-1h2a1 1 0 011 1v4a1 1 0 001 1m-6 0h6" />
+              </svg>
+            </button>
           </div>
           <div className="p-4 space-y-2">
             {project ? (