fix progress events

src/server/fastapi_app.py

@@ -66,23 +66,25 @@ async def lifespan(app: FastAPI):
                 )
         except Exception as e:
             logger.warning("Failed to load config from config.json: %s", e)
-        
-        
-        # Initialize progress service with websocket callback
+
+        # Initialize progress service with event subscription
         progress_service = get_progress_service()
         ws_service = get_websocket_service()
         
-        async def broadcast_callback(
-            message_type: str, data: dict, room: str
-        ) -> None:
-            """Broadcast progress updates via WebSocket."""
+        async def progress_event_handler(event) -> None:
+            """Handle progress events and broadcast via WebSocket.
+            
+            Args:
+                event: ProgressEvent containing progress update data
+            """
             message = {
-                "type": message_type,
-                "data": data,
+                "type": event.event_type,
+                "data": event.progress.to_dict(),
             }
-            await ws_service.manager.broadcast_to_room(message, room)
+            await ws_service.manager.broadcast_to_room(message, event.room)
 
-        progress_service.set_broadcast_callback(broadcast_callback)
+        # Subscribe to progress events
+        progress_service.subscribe("progress_updated", progress_event_handler)
 
         logger.info("FastAPI application started successfully")
         logger.info("Server running on http://127.0.0.1:8000")