feat(ui): improve CloneManager with error handling

- Add loading state during clone creation
- Add error display for failed operations
- Add retry/refresh functionality
- Improve gateway-client error handling

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

desktop/src/lib/gateway-client.ts

@@ -439,8 +439,10 @@ export class GatewayClient {
       // Check if OpenFang API is healthy
       const health = await this.restGet<{ status: string; version?: string }>('/api/health');
       if (health.status === 'ok') {
+        this.reconnectAttempts = 0;
         this.setState('connected');
         this.log('info', `Connected to OpenFang via REST API${health.version ? ` (v${health.version})` : ''}`);
+        this.emitEvent('connected', { version: health.version });
       } else {
         throw new Error('Health check failed');
       }
@@ -1588,15 +1590,32 @@ export class GatewayClient {
     this.setState('disconnected');
   }
 
+  private static readonly MAX_RECONNECT_ATTEMPTS = 10;
+
   private scheduleReconnect() {
+    if (this.reconnectAttempts >= GatewayClient.MAX_RECONNECT_ATTEMPTS) {
+      this.log('error', `Max reconnect attempts (${GatewayClient.MAX_RECONNECT_ATTEMPTS}) reached. Please reconnect manually.`);
+      this.setState('disconnected');
+      this.emitEvent('reconnect_failed', {
+        attempts: this.reconnectAttempts,
+        maxAttempts: GatewayClient.MAX_RECONNECT_ATTEMPTS
+      });
+      return;
+    }
+
     this.reconnectAttempts++;
     this.setState('reconnecting');
     const delay = Math.min(this.reconnectInterval * Math.pow(1.5, this.reconnectAttempts - 1), 30000);
 
+    this.log('info', `Scheduling reconnect attempt ${this.reconnectAttempts} in ${delay}ms`);
+
     this.reconnectTimer = window.setTimeout(async () => {
       try {
         await this.connect();
-      } catch { /* close handler will trigger another reconnect */ }
+      } catch {
+        /* close handler will trigger another reconnect */
+        this.log('warn', `Reconnect attempt ${this.reconnectAttempts} failed`);
+      }
     }, delay);
   }