chore: initial commit — leaudit-platform project skeleton

17-table PostgreSQL schema with full Chinese column comments,
FastAPI project structure (admin/common/modules),
DSL rule files, and schema migration scripts.

fastapi_modules/fastapi_leaudit/services/permissionService.py

@@ -0,0 +1,27 @@
+"""权限服务接口。"""
+
+from abc import ABC, abstractmethod
+
+
+class IPermissionService(ABC):
+    """权限检查服务接口。
+
+    权限格式：module:resource:action（如 document:list:read）
+    支持通配符：document:*:*、*:*:* 等
+    支持 GRANT/DENY 机制（DENY 优先级更高）
+    """
+
+    @abstractmethod
+    async def CheckPermission(self, UserId: int, PermissionKey: str) -> bool:
+        """检查用户是否拥有指定权限。"""
+        ...
+
+    @abstractmethod
+    async def HasAnyPermission(self, UserId: int, PermissionKeys: list[str]) -> bool:
+        """检查用户是否拥有任意一个权限（OR 逻辑）。"""
+        ...
+
+    @abstractmethod
+    async def HasAllPermissions(self, UserId: int, PermissionKeys: list[str]) -> bool:
+        """检查用户是否拥有所有权限（AND 逻辑）。"""
+        ...