test: conftest 适配异步 Database（async URL + asyncio 初始化）

tests/conftest.py

@@ -2,19 +2,21 @@
 """共享夹具：临时 SQLite 数据库 + TestClient（auth 与 rbac 测试共用）。"""
 from __future__ import annotations
 
+import asyncio
+
 import pytest
 from fastapi.testclient import TestClient
 
 from app.main import app
-from app.repositories import Database
+from app.infrastructure.repositories import Database
 
 
 @pytest.fixture()
 def client(tmp_path):
     """把 app.state.db 换成指向临时 SQLite 的 Database，保证测试隔离。"""
-    db = Database(db_url=f"sqlite:///{tmp_path}/test.db")
-    db.initialize()
+    db = Database(db_url=f"sqlite+aiosqlite:///{tmp_path}/test.db")
+    asyncio.run(db.initialize())
     app.state.db = db
     with TestClient(app) as c:
         yield c
-    db.close()
+    asyncio.run(db.close())