feat: add GameGroup2 project with frontend and backend

- Add .gitignore for Node.js and PocketBase projects
- Add frontend (Vue 3 + Vite + TypeScript)
- Add backend (PocketBase)
- Add deployment scripts and Docker compose configs

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

stop-all.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+# 停止所有服务
+
+echo "🛑 停止所有服务..."
+
+docker compose -f docker-compose.backend.yml down
+docker compose -f docker-compose.dev.yml down
+docker compose -f docker-compose.uat.yml down
+
+echo "✅ 所有服务已停止"