fix api bug response oh schedule

src/overhaul_schedule/model.py

@@ -13,6 +13,6 @@ class OverhaulSchedule(Base, DefaultMixin):
     plan_duration = Column(Integer, nullable=True)
     planned_outage = Column(Integer, nullable=True)
     actual_shutdown = Column(Integer, nullable=True)
-    start = Column(DateTime, nullable=True)
+    start = Column(DateTime(timezone=True))  # This will be TIMESTAMP WITH TIME ZONE
-    finish = Column(DateTime, nullable=True)
+    finish = Column(DateTime(timezone=True))
     remark = Column(String, nullable=True)

src/overhaul_schedule/service.py

@@ -25,6 +25,8 @@ async def get_all(*, common):
 async def create(
     *, db_session: DbSession, overhaul_job_in: OverhaulScheduleCreate
 ):
+
+
     schedule = OverhaulSchedule(**overhaul_job_in.model_dump())
     db_session.add(schedule)
     await db_session.commit()