feat: 策略复盘闭环 Phase1

- 新增 scripts/strategy_review.py: 遍历所有active策略
  - 腾讯API实时价对比止损/止盈/入场点
  - 分类: correct/wrong/partial/pending
  - 失败模式归因: 止损过紧/入场过早/止盈过远等
  - 写入 accuracy_stats 表(首条真实数据)
- 新增 docs/strategy-review-loop.md: 完整闭环设计文档
- 含失败模式→修复方向映射表

Phase1 结果: 38条策略, 94.7%准确率(19条待定), 1条止损过紧

scripts/stale_push_wlin.py

@@ -183,14 +183,14 @@ def trigger_regen_sync(stock_codes=None):
 
 
 def load_cash():
-    """从 portfolio.json 实时读现金，不硬编码"""
+    """从 portfolio.json 实时读可用现金（不含冻结部分），不硬编码"""
     try:
         with open(PORTFOLIO_PATH) as f:
             data = json.load(f)
         if isinstance(data, dict):
-            return data.get("cash", 0)
+            return data.get("cash_available", data.get("cash", 0))
         if isinstance(data, list) and len(data) > 1 and isinstance(data[1], dict):
-            return data[1].get("cash", 0)
+            return data[1].get("cash_available", data[1].get("cash", 0))
         return 0
     except Exception:
         return 0
@@ -437,7 +437,7 @@ def main():
     try:
         with open("/home/hmo/web-dashboard/data/portfolio.json") as f:
             pf = json.load(f)
-        available_cash = pf.get("cash", 0) or 0
+        available_cash = pf.get("cash_available", pf.get("cash", 0)) or 0
         # 直接取 portfolio.json 的总资产（导入时已做港币→人民币换算）
         total_assets = pf.get("total_assets", 0) or 0
         if total_assets <= 0: