Fix JavaScript syntax error - remove extra brace

app_fastapi.py

@@ -336,10 +336,9 @@ async def root():
                 
                 ws.send(JSON.stringify({
                     session_id: sessionId,
-                    frame: canvas.toDataURL('image/jpeg', 0.5)  // Lower quality = faster
+                    frame: canvas.toDataURL('image/jpeg', 0.5)
                 }));
-            }, 1000);  // 1 second = 1 FPS (slower but smoother on CPU)
-        }
+            }, 1000);
         }
         
         startCamera();