🎉 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

docker/Caddyfile.standalone

@@ -0,0 +1,21 @@
+# OpenCode WebUI - 纯前端独立部署
+# 静态文件 + API 反代到外部 opencode serve
+
+:3000 {
+	# API 反代（strip /api 前缀，SSE 需要 flush_interval -1）
+	handle_path /api/* {
+		reverse_proxy {$BACKEND_URL:host.docker.internal:4096} {
+			header_up Host {upstream_hostport}
+			flush_interval -1
+		}
+	}
+
+	# 前端静态文件
+	handle {
+		root * /srv
+		file_server
+		try_files {path} /index.html
+	}
+
+	encode gzip
+}