🎉 Initial commit: PiAgentUI — AI Agent Desktop & Web UI

A professional workspace for AI coding agents with:
- Real-time streaming chat with SSE
- Session management (fork, clone, tree navigation)
- MCP tools browser & metadata panel
- Skills browser (global, project, package sources)
- Voice input & STT provider configuration
- Integrated terminal & file explorer
- Model selector with capability metadata
- Keyboard-first UI with command palette
- 8 languages (en, pt-BR, es, ja, zh-CN, ar, bn, hi)
- Tauri 2 desktop app
- React 19 + TypeScript + Vite 8 + Tailwind CSS 4
- Pi Agent extension runtime

Originally forked from OpenCodeUI, now an independent project.
License: GPL-3.0-only

src-tauri/windows/hooks.nsi

@@ -0,0 +1,19 @@
+; OpenCodeUI - NSIS Installer Hooks
+; 安装时注册 Windows 资源管理器右键菜单，卸载时清理
+
+!macro NSIS_HOOK_POSTINSTALL
+  ; 右键文件夹 → "Open with OpenCode"
+  WriteRegStr HKCU "Software\Classes\Directory\shell\OpenCodeUI" "" "Open with OpenCode"
+  WriteRegStr HKCU "Software\Classes\Directory\shell\OpenCodeUI" "Icon" "$INSTDIR\${MAINBINARYNAME}.exe"
+  WriteRegStr HKCU "Software\Classes\Directory\shell\OpenCodeUI\command" "" '"$INSTDIR\${MAINBINARYNAME}.exe" "%V"'
+
+  ; 右键文件夹空白处 → "Open with OpenCode"
+  WriteRegStr HKCU "Software\Classes\Directory\Background\shell\OpenCodeUI" "" "Open with OpenCode"
+  WriteRegStr HKCU "Software\Classes\Directory\Background\shell\OpenCodeUI" "Icon" "$INSTDIR\${MAINBINARYNAME}.exe"
+  WriteRegStr HKCU "Software\Classes\Directory\Background\shell\OpenCodeUI\command" "" '"$INSTDIR\${MAINBINARYNAME}.exe" "%V"'
+!macroend
+
+!macro NSIS_HOOK_PREUNINSTALL
+  DeleteRegKey HKCU "Software\Classes\Directory\shell\OpenCodeUI"
+  DeleteRegKey HKCU "Software\Classes\Directory\Background\shell\OpenCodeUI"
+!macroend