把清理临时文件从通用设置移到插件页

locale/en.json

@@ -1,6 +1,6 @@
 {
   "meta": {
     "title": "Session delete",
-    "description": "Permanently delete a conversation: stop it, remove its session log, subagent logs, and spilled tool output, then drop every registry reference. Settings → General's “Clean up temporary files” sweeps what conversations that are gone left behind."
+    "description": "Permanently delete a conversation: stop it, remove its session log, subagent logs, and spilled tool output, then drop every registry reference. This plugin's own page sweeps what conversations that are gone left behind."
   }
 }

locale/zh.json

@@ -1,6 +1,6 @@
 {
   "meta": {
     "title": "会话彻底删除",
-    "description": "彻底删除一个会话：先停止它，再删除会话日志、子智能体日志与工具输出溢出文件，并清理相关注册表引用；设置 → 通用设置里的「清理临时文件」可清理已删除会话遗留的孤立临时文件。"
+    "description": "彻底删除一个会话：先停止它，再删除会话日志、子智能体日志与工具输出溢出文件，并清理相关注册表引用；这个插件的页面里可清理已删除会话遗留的孤立临时文件。"
   }
 }