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/core/auth.py

@@ -0,0 +1,71 @@
+import logging
+from typing import Optional
+
+from config.settings import settings
+from .client import APIClient
+
+logger = logging.getLogger(__name__)
+
+
+class AuthManager:
+    def __init__(self, client: APIClient):
+        self.client = client
+        self._current_role: Optional[str] = None
+    
+    @property
+    def current_role(self) -> Optional[str]:
+        return self._current_role
+    
+    def login(self, username: str, password: str) -> bool:
+        resp = self.client.login(username, password)
+        if resp.ok():
+            self._current_role = "custom"
+            return True
+        logger.error(f"登录失败: {resp.msg}")
+        return False
+    
+    def logout(self):
+        self.client.clear_token()
+        self._current_role = None
+    
+    def _login_preset_account(self, role: str) -> bool:
+        account = settings.get_account(role)
+        if not account:
+            raise ValueError(f"未配置 {role} 账号，请检查配置文件")
+        
+        if self.login(account["username"], account["password"]):
+            self._current_role = role
+            return True
+        return False
+    
+    def as_super_admin(self) -> 'AuthManager':
+        self._login_preset_account("super_admin")
+        return self
+    
+    def as_platform_admin(self) -> 'AuthManager':
+        self._login_preset_account("platform_admin")
+        return self
+    
+    def as_agent(self, shop_id: int, username: Optional[str] = None, password: Optional[str] = None) -> 'AuthManager':
+        if username and password:
+            self.login(username, password)
+        else:
+            account = settings.get_account(f"agent_{shop_id}")
+            if account:
+                self.login(account["username"], account["password"])
+            else:
+                raise ValueError(f"未配置 agent_{shop_id} 账号，请提供用户名密码或在配置文件中添加")
+        self._current_role = f"agent_{shop_id}"
+        return self
+    
+    def as_enterprise(self, enterprise_id: int, username: Optional[str] = None, password: Optional[str] = None) -> 'AuthManager':
+        if username and password:
+            self.login(username, password)
+        else:
+            account = settings.get_account(f"enterprise_{enterprise_id}")
+            if account:
+                self.login(account["username"], account["password"])
+            else:
+                raise ValueError(f"未配置 enterprise_{enterprise_id} 账号，请提供用户名密码或在配置文件中添加")
+        self._current_role = f"enterprise_{enterprise_id}"
+        return self