币种统一全覆盖审计 + 修复

审计范围：price_monitor/per_stock_reassess/stale_push_wlin/stale_detector/system_audit/all-cron-prompts

问题根因：系统三年前设计时港股用HKD存储，最近portfolio
统一CNY但decisions.json没同步。所有API拉价(HKD)和文件
读价(CNY)交叉比较时产生币种错配。

修复：price_monitor每轮同步 + per_stock_reassess/fetch_trend_data
本地API拉价时转CNY + stale_push_wlin
+

data/portfolio.json

@@ -671,7 +671,7 @@
   "total_assets": 1239815.6,
   "total_pl": 0,
   "position_pct": 88.25,
-  "updated_at": "2026-06-29 16:24",
+  "updated_at": "2026-06-29 16:54",
   "source": "/home/hmo/stocks/holding.xls",
   "frozen_cash": 39481.4,
   "available_cash": 73758.85,

scripts/price_audit.py

@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+"""price_audit.py — 币种审计：检查所有涉及价格的代码是否有币种问题
+运行方式：python3 price_audit.py > /tmp/price_audit.txt
+"""
+import os, sys, json, re
+from pathlib import Path
+
+# 关键文件列表
+MOFIN = Path("/home/hmo/MoFin")
+SCRIPT = Path("/home/hmo/.hermes/profiles/position-analyst/scripts")
+SKILLS = Path("/home/hmo/.hermes/profiles/position-analyst/skills")
+
+# 检查每个脚本
+issues = []
+for root in [MOFIN, SCRIPT]:
+    for f in sorted(root.glob("*.py")):
+        text = f.read_text()
+        name = f.relative_to(root)
+        
+        # 1. 是否自己拉腾讯API
+        has_tencent = 'qt.gtimg.cn' in text
+        
+        # 2. 是否读decisions.json
+        has_dec_read = 'decisions.json' in text
+        
+        # 3. 是否读portfolio.json
+        has_pf_read = 'portfolio.json' in text
+        
+        # 4. 是否有止损/买入区比较
+        has_stop_compare = bool(re.search(r'(stop_loss|entry_low|entry_high|take_profit)', text))
+        
+        # 5. 是否有币种转换
+        has_currency = 'HK_RATE' in text or 'hkd_to_cny' in text or 'hk_rate' in text
+        
+        # 判断风险
+        if has_tencent and has_stop_compare and not has_currency:
+            if 'stop_loss' in text:
+                issues.append(f"⚠️ HIGH {name}: 自己拉API({has_tencent}) + 比较stop_loss({has_stop_compare}) + 无币种转换({not has_currency})")
+        
+        if has_tencent and has_dec_read and not has_currency:
+            issues.append(f"⚠️ MED {name}: 自己拉API({has_tencent}) + 读取decisions({has_dec_read}) + 无币种转换")
+
+with open("/tmp/price_audit.txt", "w") as f:
+    f.write(f"币种审计报告 - {len(issues)} 个问题\n\n")
+    for i in sorted(issues, key=lambda x: (0 if 'HIGH' in x else 1)):
+        f.write(i + "\n")
+        
+print(f"审计完成：{len(issues)} 个币种风险点")
+print("详见 /tmp/price_audit.txt")