1.7.r83.6414ea76

• Feature: Speed Unit Lock (功能：网速单位锁定)

  • Speed Unit Setting: Added a new "Speed Unit" option in General Settings to lock the display
    unit (Auto / B/s / KB/s / MB/s / GB/s). Affects notification, overlay, and dashboard globally.
  • 网速单位设置: 在常规设置中新增「网速单位」选项，可锁定显示单位（自动 / B/s / KB/s / MB/s /
    GB/s），全局统一影响通知栏、悬浮窗和主界面仪表盘。

• Fix: Overlay & Boot (修复：悬浮窗与开机自启)

  • Overlay Removal: Fixed potential crash when removing overlay window.
  • Boot Receiver: Improved boot auto-start logic and broadcast receiver registration safety.
  • 悬浮窗移除: 修复移除悬浮窗时可能的异常崩溃。
  • 开机自启: 优化开机自启逻辑并增强广播注册安全性。

• Improvement: Dependencies (优化：依赖更新)

  • Updated Kotlin and Compose related dependency versions.
  • 更新 Kotlin 与 Compose 相关依赖版本。