add maintenance model, factory and service

src/data-source.ts

@@ -69,6 +69,7 @@ import { inspectionPoint } from "./entity/unit/inspection/inspectionPoint";
 import { inspection } from "./entity/unit/inspection/inspection";
 import { inspectionPointResult } from "./entity/unit/inspection/inspectionPointResult";
 import { UnitBase1748261477410 } from "./migrations/1748261477410-unitBase";
+import { maintenance } from "./entity/unit/maintenance";
 
 configCheck();
 
@@ -131,6 +132,7 @@ const dataSource = new DataSource({
     wearableType,
     wearable,
     damageReport,
+    maintenance,
     inspectionPlan,
     inspectionVersionedPlan,
     inspectionPoint,