PulseCoreLite v1.8.7

• 主页面新增三段式导航：统一切换监控、工具箱、设置视图，降低功能跳转成本

• 主页面内嵌工具箱能力：可直接在悬浮窗中使用关机、清理、硬件分析与提醒页签

• 悬浮窗头部交互升级：新增页签展开/收起切换，并补充对应中英文文案

• 性能与加载优化：配置面板与内嵌工具箱改为异步加载，提升首屏响应速度

• 代码结构清理：移除已弃用的提醒屏幕备份文件，减少历史冗余

• Add tri-pane main navigation to switch between Monitor, Toolkit, and Settings views

• Embed Toolkit directly in the main overlay with shutdown, cleanup, hardware, and reminder tabs

• Upgrade overlay header interactions with tabs expand/collapse toggle and updated CN/EN copy

• Improve startup performance by async-loading the config panel and embedded toolkit components

• Remove deprecated reminder-screen backup files to keep the codebase lean