update: Major Overhaul to all subsystems

backend/devices/router.py

@@ -7,6 +7,8 @@ from devices.models import (
     DeviceUsersResponse, DeviceUserInfo,
 )
 from devices import service
+from mqtt import database as mqtt_db
+from mqtt.models import DeviceAlertEntry, DeviceAlertsResponse
 
 router = APIRouter(prefix="/api/devices", tags=["devices"])
 
@@ -67,3 +69,13 @@ async def delete_device(
     _user: TokenPayload = Depends(require_permission("devices", "delete")),
 ):
     service.delete_device(device_id)
+
+
+@router.get("/{device_id}/alerts", response_model=DeviceAlertsResponse)
+async def get_device_alerts(
+    device_id: str,
+    _user: TokenPayload = Depends(require_permission("devices", "view")),
+):
+    """Return the current active alert set for a device. Empty list means fully healthy."""
+    rows = await mqtt_db.get_alerts(device_id)
+    return DeviceAlertsResponse(alerts=[DeviceAlertEntry(**r) for r in rows])