os.getenv -> config.py

api/endpoints/generation_router.py

@@ -8,6 +8,7 @@ from fastapi.params import Depends
 from starlette import status
 from starlette.requests import Request
 
+from config import settings
 from api.dependency import get_generation_service, get_project_id, get_dao
 from api.endpoints.auth import get_current_user
 from api.models import (
@@ -197,7 +198,7 @@ async def import_external_generation(
     body = await request.body()
     
     # Verify signature
-    secret = os.getenv("EXTERNAL_API_SECRET")
+    secret = settings.EXTERNAL_API_SECRET
     if not secret:
         logger.error("EXTERNAL_API_SECRET not configured")
         raise HTTPException(status_code=500, detail="Server configuration error")