device state setting fix 2

apps/api/main.py

@@ -365,17 +365,15 @@ async def publish_mqtt(topic: str, payload: dict[str, Any]) -> None:
 @app.get("/devices/{device_id}")
 async def get_device(device_id: str) -> DeviceInfo:
     devices = load_devices()
-
-    try:
-        device = devices[device_id]
-        return DeviceInfo(
-                device_id=device["device_id"],
-                type=device["type"],
-                name=device.get("name", device["device_id"]),
-                features=device.get("features", {})
-            )
-    except KeyError:
+    device = next((d for d in devices if d["device_id"] == device_id), None)
+    if not device:
         raise HTTPException(status_code=404, detail="Device not found")
+    return DeviceInfo(
+            device_id=device["device_id"],
+            type=device["type"],
+            name=device.get("name", device["device_id"]),
+            features=device.get("features", {})
+        )
 
 @app.get("/devices")
 async def get_devices() -> list[DeviceInfo]: