feat: add integration and unit tests for local folder indexing and document versioning

surfsense_backend/tests/integration/conftest.py

@@ -166,3 +166,24 @@ def make_connector_document(db_connector, db_user):
         return ConnectorDocument(**defaults)
 
     return _make
+
+
+@pytest_asyncio.fixture
+async def db_local_folder_connector(
+    db_session: AsyncSession, db_user: User, db_search_space: SearchSpace, tmp_path
+) -> SearchSourceConnector:
+    connector = SearchSourceConnector(
+        name="Test Local Folder",
+        connector_type=SearchSourceConnectorType.LOCAL_FOLDER_CONNECTOR,
+        config={
+            "folder_path": str(tmp_path),
+            "folder_name": "test-folder",
+            "exclude_patterns": [],
+            "file_extensions": None,
+        },
+        search_space_id=db_search_space.id,
+        user_id=db_user.id,
+    )
+    db_session.add(connector)
+    await db_session.flush()
+    return connector