Release v2.2.4

Fixed

• Root-Cause Remediation for Terminal PTY I/O Latency, Slow History Restore, and Sluggish Screen Clear:
  • Eliminated the severe VSYNC throttling bottleneck in MactermKit: background ghostty_wakeup_callback now immediately dispatches and triggers runtime.appTick() on the main runloop, unlocking true real-time PTY I/O throughput (from dial-up speed to hundreds of MB/s native throughput).
  • Terminal session scrollback restoration is now virtually instantaneous instead of rendering line-by-line like a sluggish typewriter.
  • Shell clear commands now execute and clear the screen immediately without hanging across display link refresh frames.
  • Added native Cmd+K ("Clear Terminal") shortcut and menu action to wipe the terminal screen and scrollback buffer instantly via Ghostty's native clear_screen action while automatically clearing persisted session history.
  • Added safe history replay line-capping protection in AppModel.prepareHistoryRestoreCommand to keep launch times snappy.
• Dependency Updates:
  • Upgraded MactermKit to version 1.0.27.

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修复

• 根因修复终端 PTY I/O 延迟、历史记录恢复慢与清屏迟钝问题：
  • 彻底清除 MactermKit 中限制 PTY I/O 消费的 60Hz 帧率节流严重缺陷：后台 ghostty_wakeup_callback 唤醒回调现在直接在主队列调度执行 runtime.appTick()，消除了将 I/O 消费延期至下一个 VSYNC 帧和多重异步 Task 调度的瓶颈，PTY 吞吐量恢复至数百 MB/s 原生级别。
  • 本地终端会话启动与历史记录回放达到秒级瞬间加载，彻底告别旧版逐行打字机式的卡顿慢速滚动。
  • 终端中执行 clear 命令时，清屏控制序列能够被瞬间读取消费，屏幕即刻刷空无迟滞。
  • 新增 macOS 原生 Cmd+K（“清除终端”）快捷键与菜单命令，直调 Ghostty 原生 clear_screen 动作瞬间清空屏幕与回滚缓冲区，并自动同步清除当前会话的本地持久化历史。
  • 在 AppModel.prepareHistoryRestoreCommand 中增加单次回放最大行数保护，保证会话恢复始终极速轻盈。
• 依赖项更新：
  • 升级 MactermKit 至版本 1.0.27。

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