perf: 修复 settings patch 问题

apps/settings/signal_handlers.py

@@ -93,7 +93,8 @@ def subscribe_settings_change(sender, **kwargs):
 def monkey_patch_settings(sender, **kwargs):
     def monkey_patch_getattr(self, name):
         val = getattr(self._wrapped, name)
-        if callable(val):
+        # 只解析 defaults 中的 callable
+        if callable(val) and val.__module__ == 'jumpserver.conf':
             val = val()
         return val