docs: Add Hyperliquid configuration to .env.example

- Add HYPERLIQUID_TRADING_ENABLED flag
- Add Hyperliquid risk control settings
- Document environment variables setup with clawfi-hyperliquid-skill

.env.example

@@ -189,3 +189,20 @@ STOCK_SYMBOLS=AAPL,MSFT,GOOGL,META,AMZN,NVDA,AMD,AVGO,ARM,PLTR,SNOW,LLY,NVO,VRTX
 STOCK_ANALYSIS_INTERVAL=3600
 # 触发 LLM 分析的置信度阈值（0-1）
 STOCK_LLM_THRESHOLD=0.60
+
+# ============================================================================
+# Hyperliquid 交易配置（ClawFi 集成）
+# ============================================================================
+# Hyperliquid 实盘交易开关（默认关闭，启用前请先配置环境变量）
+HYPERLIQUID_TRADING_ENABLED=false
+
+# Hyperliquid 环境变量（运行官方安装脚本自动配置到 ~/.zshrc）
+# 安装命令: npx clawfi-hyperliquid-skill --wallet=YOUR_WALLET --key=YOUR_KEY
+# CLAWFI_WALLET_ADDRESS=your_main_wallet_address
+# CLAWFI_PRIVATE_KEY=your_agent_private_key
+
+# Hyperliquid 风险控制
+HYPERLIQUID_MAX_TOTAL_LEVERAGE=10.0      # 总杠杆上限（≤10x，ClawFi 强制规则）
+HYPERLIQUID_CIRCUIT_BREAKER_DRAWDOWN=0.10 # 10% 熔断阈值（ClawFi 强制规则）
+HYPERLIQUID_MAX_SINGLE_POSITION=1000     # 单笔最大持仓金额 (USD)
+