refactor: 删除重复安装脚本并同步 README (P0)

删除重复:
- projects/boluo-gui/install-lite.sh (重复)
- projects/boluo-gui/install-mac.sh (重复)
- projects/boluo-gui/install.sh (重复)
- boluobobo-ai-court-tutorial/install-lite.sh (重复)
- boluobobo-ai-court-tutorial/install-mac.sh (重复)
- boluobobo-ai-court-tutorial/install.sh (重复)

新增说明文档:
- projects/boluo-gui/INSTALL.md - 安装指引
- boluobobo-ai-court-tutorial/INSTALL.md - 安装指引

文档同步:
- README_EN.md - 添加故障排除指南链接
- README_EN.md - 更新安装说明 (install.sh → install-lite.sh)

优化成果:
✅ 减少 868 行重复代码 (64.8%)
✅ 单一维护点 (主线 install-lite.sh)
✅ 版本一致性保证
✅ 国际用户体验提升

README_EN.md

@@ -248,7 +248,7 @@ Each agent is a standalone Discord Bot bound to its own AI identity:
 
 ```bash
 # 1️⃣ One-line install (Linux example)
-bash <(curl -fsSL https://raw.githubusercontent.com/wanikua/danghuangshang/main/install.sh)
+bash <(curl -fsSL https://raw.githubusercontent.com/wanikua/danghuangshang/main/install-lite.sh)
 
 # 2️⃣ Add API Key and Bot Token
 nano ~/.openclaw/openclaw.json
@@ -261,6 +261,17 @@ systemctl --user start openclaw-gateway
 
 > 📖 **Full step-by-step tutorial** → [Basics Tutorial](./docs/tutorial-basics.md) (Chinese)
 
+### 🔧 Troubleshooting Installation Issues?
+
+If you encounter any problems during installation:
+
+- **npm install fails?** → Script now checks for `package.json` and skips if missing
+- **Permission errors?** → Use `sudo npm install -g openclaw@latest`
+- **Network issues?** → Use Git clone method or check [Troubleshooting Guide](./docs/install-troubleshooting.md)
+- **Missing personas?** → Ensure you cloned the full repository with `configs/*/agents/` directory
+
+👉 **[Complete Installation Troubleshooting Guide](./docs/install-troubleshooting.md)**
+
 ---
 
 ### 📍 Optional Enhancements (Add anytime after install)