add fastapi rest api and celery workers

iaai_scraper/api/routes/health.py

@@ -0,0 +1,27 @@
+"""Health endpoint."""
+
+from fastapi import APIRouter, Depends
+from sqlalchemy import text
+
+from ..deps import get_persistence
+from ...storage.db import PersistenceService
+
+router = APIRouter()
+
+
+@router.get("/health")
+def health_check(persistence: PersistenceService = Depends(get_persistence)):
+    """Проверка API и БД."""
+    db_ok = False
+    try:
+        with persistence.session_scope() as session:
+            session.execute(text("SELECT 1"))
+            db_ok = True
+    except Exception:
+        pass
+
+    return {
+        "status": "ok" if db_ok else "degraded",
+        "service": "iaai-scraper-api",
+        "database": "connected" if db_ok else "unavailable",
+    }