feat: 远程MT5数据源 + 信号对冲/回撤锁仓模块

新增:
- core/risk/hedge.py: 对冲管理器
  - 信号对冲: 加权信号反向超阈值→半仓反向
  - 回撤锁仓: 浮亏超-0.3%→全仓锁死
  - 自动解锁: 信号回正/对冲止盈0.5%

改动:
- run/backtest.py: 支持远程数据源回测
- run/realtime.py: 远程/本地双模式
- core/risk/position.py: 集成HedgeManager
- core/risk/controller.py: 传递weighted_signal
- execution/realtime_trader.py: 传入加权信号
- core/data/live.py, utils.py: MetaTrader5懒加载(ARM兼容)
- config.py: HEDGE_CONFIG, REMOTE配置, INITIAL_CAPITAL=1944

今日实盘: 9单, +7.4% (944→088)

core/risk/position.py

@@ -8,6 +8,7 @@ from config import (
     RISK_CONFIG_CONST, SIMULATION_CONFIG
 )
 from core.risk.exit_rules import ExitRuleEngine, ExitContext
+from core.risk.hedge import HedgeManager
 
 
 class PositionManager:
@@ -70,6 +71,10 @@ class PositionManager:
         if self._persist_peaks:
             self._load_peak_data()
 
+        # 对冲管理器
+        from config import HEDGE_CONFIG
+        self.hedge_manager = HedgeManager(self, HEDGE_CONFIG)
+
     # ── 仓位计算 ──
 
     def _calculate_position_size(self, capital_to_allocate, current_price):
@@ -180,7 +185,7 @@ class PositionManager:
 
     # ── 持仓监控 ──
 
-    def monitor_positions(self, current_price, dry_run=False):
+    def monitor_positions(self, current_price, dry_run=False, weighted_signal=0.0):
         if not self.positions:
             return
 
@@ -231,6 +236,15 @@ class PositionManager:
             self.update_equity()
             self.cleanup_peak_data()
 
+        # ── 对冲评估 ──
+        if self.positions and self.hedge_manager:
+            hedge_actions = self.hedge_manager.evaluate(weighted_signal, current_price)
+            for action, target, reason in hedge_actions:
+                if action == "hedge":
+                    self.hedge_manager.execute_hedge(target, reason, current_price)
+                elif action == "unhedge":
+                    self.hedge_manager.execute_unhedge(target, reason)
+
     # ── 盈亏计算 ──
 
     def _calculate_pnl_pct(self, position, current_price_value):