chore: imports hoisten und stricter background-task assertion

tests/test_webhook.py

@@ -1,5 +1,8 @@
+from unittest.mock import AsyncMock
+
 import pytest
 from fastapi import HTTPException
+from fastapi.testclient import TestClient
 from pydantic import ValidationError
 
 from app.webhook.models import NextcloudEvent, EventType
@@ -40,10 +43,6 @@ def test_verify_secret_missing_fail():
     assert exc_info.value.status_code == 401
 
 
-from unittest.mock import AsyncMock, MagicMock, patch
-from fastapi.testclient import TestClient
-
-
 def _make_app(monkeypatch):
     """Build the FastAPI app with all external clients stubbed."""
     monkeypatch.setenv("NEXTCLOUD_WEBDAV_URL", "http://nc")
@@ -116,4 +115,7 @@ def test_webhook_dispatches_background_task(monkeypatch):
         )
 
     assert r.status_code == 202
-    process_mock.assert_awaited_once()
+    process_mock.assert_awaited_once_with(
+        "Documents/THB/Studium/2.Semester/Databases/x.pdf",
+        EventType.CREATED,
+    )