feat: Implement a comprehensive audit log system with a dedicated dashboard page and backend API.

backend/api/v1/modules/a76/audit_log/middleware.py

@@ -0,0 +1,22 @@
+from starlette.middleware.base import BaseHTTPMiddleware
+from starlette.requests import Request
+from starlette.responses import Response
+from core.security import verify_token
+from core.context import set_user_context
+
+class UserContextMiddleware(BaseHTTPMiddleware):
+    async def dispatch(self, request: Request, call_next) -> Response:
+        auth_header = request.headers.get("Authorization")
+        if auth_header and auth_header.startswith("Bearer "):
+            token = auth_header.split(" ")[1]
+            try:
+                # verify_token might raise exception if invalid, we catch it to not block request
+                # but we won't have user context
+                user_info = verify_token(token)
+                set_user_context(user_info)
+            except Exception:
+                # Log error or ignore
+                pass
+        
+        response = await call_next(request)
+        return response