feat: SSE close fix, auto-compaction status, undo/redo buttons, tool copy, build fix

[jokinas]

feat: SSE连接修复、自动压缩状态显示、撤销/重做按钮、工具复制、构建修复

修改内容

SSE 连接修复

• 修复 agent-event-connection.ts 的 close() 方法，使用 succeed() 替代 reject，防止正常关闭连接时产生 AgentEventConnectionError 报错

自动压缩状态显示

• 在 AgentPhase 类型中新增 compacting 状态，区分自动压缩与手动压缩
• 自动压缩时显示"正在自动压缩"，手动压缩时显示"正在压缩"
• 修复此前自动压缩时前端一直显示"正在等候模型"，无法区分是否在处理自动压缩的问题

撤销/重做/检查点按钮

• 在聊天输入框底部工具栏添加撤销、重做、检查点三个按钮
• 按钮通过 handleSend 调用 pi-workspace-history 插件的斜杠命令（/undo、/redo、/checkpoint）

工具调用复制按钮

• 在 ToolCallBlock 头部下拉箭头左侧添加复制按钮
• 点击复制工具输入的命令（block.input.command），而非工具的回复内容

React 重复 Key 修复

• 修复 CompactionFileList 的重复 key 警告，使用 Array.from(new Set(files)) 对文件路径去重

CSS 导入修复

• 将 @xterm/xterm/css/xterm.css 从 globals.css 的 @import 移至 layout.tsx 的 JS import
• Tailwind v4 的 PostCSS 处理器无法解析 CSS @import 中的 bare module 路径

生产构建修复

• 在 next.config.ts 中添加 outputFileTracingExcludes，排除 UPPS 路径
• 修复 Windows 上 next build 时 EPERM 错误

翻译

• 新增中文和英文翻译：chat.autoCompacting、chat.undo、chat.redo、chat.checkpoint

feat: SSE close fix, auto-compaction status, undo/redo buttons, tool copy, build fix

Changes

SSE Connection Fix

• Fix agent-event-connection.ts close() to use succeed() instead of reject, preventing spurious AgentEventConnectionError on normal connection shutdown

Auto-Compaction Status

• Add compacting state to AgentPhase type to distinguish auto-compaction from manual compaction
• Display "正在自动压缩" (Auto-compacting) during auto compaction, "正在压缩" (Compacting) during manual compaction
• Previously the UI showed "Waiting for model" during auto-compaction, making it indistinguishable from actual model wait

Undo / Redo / Checkpoint Buttons

• Add undo, redo, and checkpoint toolbar buttons to ChatInput
• Buttons invoke pi-workspace-history slash commands (/undo, /redo, /checkpoint) via handleSend

Tool Call Copy Button

• Add a copy button to the ToolCallBlock header (left of the expand arrow)
• Copies the tool's input command (block.input.command), not the tool result

React Duplicate Key Fix

• Fix CompactionFileList duplicate key warning by deduplicating file paths with Array.from(new Set(files))

CSS Import Fix

• Move @xterm/xterm/css/xterm.css from globals.css to layout.tsx JS import
• Tailwind v4 PostCSS processor cannot resolve bare module paths in CSS @import

Production Build Fix

• Add outputFileTracingExcludes for UPPS path to fix EPERM error during next build on Windows

Translations

• Add zh-CN and en translations for chat.autoCompacting, chat.undo, chat.redo, chat.checkpoint