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_common/fastapi_common_security/security.py

@@ -0,0 +1,23 @@
+"""JWT 鉴权工具。"""
+
+from __future__ import annotations
+
+from typing import Any
+
+import jwt
+from fastapi import Request
+
+from fastapi_admin.config import JWT_SECRET_KEY, JWT_ALGORITHM
+
+
+def verify_access_token(RequestObj: Request) -> dict[str, Any]:
+    """验证 JWT access token 并返回 payload。"""
+    auth = RequestObj.headers.get("Authorization", "")
+    if not auth.startswith("Bearer "):
+        return {}
+    token = auth.removeprefix("Bearer ").strip()
+    try:
+        payload = jwt.decode(token, JWT_SECRET_KEY, algorithms=[JWT_ALGORITHM])
+        return payload
+    except jwt.PyJWTError:
+        return {}