feat: 更新插件至 v0.4.6

- 更新核心功能代码
- 优化样式和 UI
- 更新提示词配置
- 更新流程配置

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

ui/search-dialog.html

@@ -1,4 +1,4 @@
-<!-- 交互式记忆搜索对话面板 -->
+<!-- 记忆搜索助手对话面板 -->
 <div id="mm-search-dialog" class="mm-search-panel">
   <div class="mm-search-panel-header" id="mm-search-header-toggle" style="cursor: pointer;">
     <span class="mm-search-panel-title">