Resolve copilot comments

Author: NirajC-Microsoft

src/frontend/src/pages/HomePage.tsx

@@ -111,7 +111,6 @@ const HomePage: React.FC = () => {
                 } finally {
                     dispatch(setIsLoadingTeam(false));
                 }
-                showToast(`${team.name} team has been selected with ${team.agents.length} agents`, 'success');
             } else {
                 showToast('No team is currently selected', 'info');
             }

src/frontend/src/services/WebSocketService.tsx

@@ -10,7 +10,7 @@ class WebSocketService {
     private reconnectDelay = 1000; // 1s base, exponential: 1s, 2s, 4s, 8s, 16s
     private listeners: Map<string, Set<(message: StreamMessage) => void>> = new Map();
     private planSubscriptions: Set<string> = new Set();
-    private reconnectTimer: NodeJS.Timeout | null = null;
+    private reconnectTimer: ReturnType<typeof setTimeout> | null = null;
     private isConnecting = false;
     private intentionalDisconnect = false;
     private lastPlanId: string | undefined;