feat: strengthen backup and mobile workflows

tests/conftest.py

@@ -1,8 +1,10 @@
+import asyncio
 import os
 from pathlib import Path
 
 import pytest
 from fastapi.testclient import TestClient
+from sqlalchemy import event
 
 
 @pytest.fixture
@@ -11,9 +13,18 @@ def client(tmp_path: Path):
     os.environ["DODO_AUTO_CREATE_SCHEMA"] = "true"
     from backend.config import get_settings
     get_settings.cache_clear()
-    from backend.db import reset_engine
+    from backend.db import get_engine, reset_engine
     reset_engine()
+    engine = get_engine()
+
+    @event.listens_for(engine.sync_engine, "connect")
+    def enable_sqlite_foreign_keys(dbapi_connection, _):
+        cursor = dbapi_connection.cursor()
+        cursor.execute("PRAGMA foreign_keys=ON")
+        cursor.close()
+
     from backend.main import app
     with TestClient(app) as test_client:
         yield test_client
+    asyncio.run(engine.dispose())
     reset_engine()