revert(币种统一): 回退CNY转换

港股价格存原币(HKD)，不存CNY。
Dad需要在股软里看港币价下单操作。

scripts/price_audit.py

@@ -1,49 +0,0 @@
-#!/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")