add task status endpoint

iaai_scraper/api/app.py

@@ -12,8 +12,7 @@ from .routes import cars, health, tasks
 @asynccontextmanager
 async def lifespan(app: FastAPI):
     # Жизненный цикл.
-    persistence: PersistenceService = app.state.persistence
-    persistence.create_tables()
+    # Таблицы создаются через Alembic-миграции (сервис migrate).
     yield
 
 

iaai_scraper/api/routes/tasks.py

@@ -7,6 +7,7 @@ from sqlalchemy import select, func
 from ..deps import get_persistence
 from ...storage.db import PersistenceService
 from ...storage.models import SyncRun
+from ...worker.celery_app import celery_app
 from ...worker.tasks import sync_vehicle_task, sync_listing_task
 
 router = APIRouter()
@@ -64,6 +65,25 @@ def start_sync_listing(
     }
 
 
+@router.get("/tasks/{task_id}")
+def get_task_status(task_id: str):
+    result = celery_app.AsyncResult(task_id)
+
+    payload: dict = {
+        "task_id": task_id,
+        "state": result.state,
+    }
+
+    if result.successful():
+        payload["result"] = result.result
+    elif result.failed():
+        payload["error"] = str(result.result)
+    elif result.info is not None:
+        payload["meta"] = result.info
+
+    return payload
+
+
 @router.get("/sync-runs")
 def list_sync_runs(
     page: int = Query(1, ge=1),