Fix HA websocket state change handling

app/main.py

@@ -100,7 +100,7 @@ async def lifespan(app: FastAPI) -> AsyncIterator[None]:
 app = FastAPI(
     title="SillyHome Next API",
     description="Lokales Smart-Home-Intelligenzsystem für Home Assistant.",
-    version="0.7.6",
+    version="0.7.7",
     lifespan=lifespan,
 )
 app.state.settings = load_settings()
@@ -213,12 +213,20 @@ async def _ha_event_listener(app: FastAPI, client: HaClient) -> None:
                         event = data.get("event", {})
                         if event.get("event_type") != "state_changed":
                             continue
-                        entity_id = event.get("entity_id")
+                        event_data = event.get("data", {})
+                        if not isinstance(event_data, dict):
+                            logger.warning("State-Changed-Event ohne gültige Daten empfangen")
+                            continue
+                        entity_id = event_data.get("entity_id")
                         if not entity_id:
                             continue
                         # Prüfe, ob Entity ein Aktor oder relevanter Kontext ist
                         # Sofortige Vorhersage für betroffene Aktoren auslösen
-                        await asyncio.to_thread(engine.handle_state_change, entity_id, event.get("new_state"))
+                        await asyncio.to_thread(
+                            engine.handle_state_change,
+                            entity_id,
+                            event_data.get("new_state"),
+                        )
                     except json.JSONDecodeError:
                         logger.warning("Ungültige JSON-Nachricht von HA-WebSocket")
                     except Exception as exc: