feat(监控): 完善系统监控、登录状态与访问审计能力

backend/app/core/security.py

@@ -22,6 +22,7 @@ def create_access_token(
     max_age_seconds: Optional[int] = None,
     issued_at: Optional[datetime] = None,
     client_type: Optional[str] = None,
+    session_id: Optional[str] = None,
 ) -> str:
     now = issued_at or datetime.now(timezone.utc)
     if now.tzinfo is None:
@@ -42,6 +43,8 @@ def create_access_token(
     }
     if client_type:
         to_encode["client_type"] = client_type
+    if session_id:
+        to_encode["sid"] = session_id
     return jwt.encode(to_encode, settings.JWT_SECRET_KEY, algorithm=ALGORITHM)