重构项目架构，新增 MT5 代理服务

- 重构核心模块：DataProvider 依赖注入、RiskController 门面、信号注册表
- 新增 FastAPI 代理服务 (run/server.py)，支持局域网远程调用 MT5
- 新增 RemoteDataProvider + AttrDict，远端无缝替代 LiveDataProvider
- 新增序列化模块，MT5 对象转 JSON 兼容格式
- 重构入口点至 run/ 包，支持 python -m run.realtime/server/backtest/optimize
- 更新 CLAUDE.md 文档

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Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

strategies/rsi.py

@@ -18,10 +18,13 @@ class RSIStrategy(BaseStrategy):
 
         df = pd.DataFrame(rates)
         delta = df['close'].diff()
-        gain = (delta.where(delta > 0, 0)).rolling(window=self.period).mean()
-        loss = (-delta.where(delta < 0, 0)).rolling(window=self.period).mean()
-        
-        rs = gain / loss
+        gain = delta.where(delta > 0, 0)
+        loss = -delta.where(delta < 0, 0)
+
+        avg_gain = gain.ewm(com=self.period - 1, min_periods=self.period).mean()
+        avg_loss = loss.ewm(com=self.period - 1, min_periods=self.period).mean()
+
+        rs = avg_gain / avg_loss
         rsi = 100 - (100 / (1 + rs))
         
         latest_rsi = rsi.iloc[-1]