feat(shop-role): 实现店铺角色继承功能和权限检查优化

- 新增店铺角色管理 API 和数据模型
- 实现角色继承和权限检查逻辑
- 添加流程测试框架和集成测试
- 更新权限服务和账号管理逻辑
- 添加数据库迁移脚本
- 归档 OpenSpec 变更文档

Ultraworked with Sisyphus

flow_tests/fixtures/common.py

@@ -0,0 +1,38 @@
+import pytest
+
+import sys
+from pathlib import Path
+sys.path.insert(0, str(Path(__file__).parent.parent))
+
+from core.client import APIClient
+from core.auth import AuthManager
+from core.database import Database
+from core.cleanup import CleanupTracker
+from core.mock import MockService
+
+
+@pytest.fixture(scope="function")
+def client():
+    return APIClient()
+
+
+@pytest.fixture(scope="function")
+def auth(client):
+    return AuthManager(client)
+
+
+@pytest.fixture(scope="module")
+def db():
+    return Database()
+
+
+@pytest.fixture(scope="function")
+def tracker(db):
+    t = CleanupTracker(db)
+    yield t
+    t.cleanup()
+
+
+@pytest.fixture(scope="function")
+def mock(db):
+    return MockService(db)