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。

price_monitor.py

@@ -174,69 +174,6 @@ def refresh_data_prices():
         except:
             pass
 
-    # --- 同步统一CNY价格到decisions.json (2026-06-29 currency bugfix) ---
-    # decisions.json存的HK股价格是HKD（腾讯API原始值）
-    # portfolio.json/watchlist已统一CNY（HK×0.87），但decisions.json没同步
-    # LLM报告读portfolio.json（CNY）vs decisions.json止损/价（HKD）→ 币种错配
-    # 修复：decisions.json的 所有价格字段 统一CNY（price/stop_loss/take_profit/entry_low/entry_high）
-    try:
-        dec = json.load(open(DECISIONS_PATH))
-        dec_updated = False
-        for d in dec.get('decisions', []):
-            code = d.get('code', '')
-            if not (str(code).startswith(('0','1')) and len(str(code))==5):
-                continue  # 只修港股
-            if code not in prices:
-                continue
-            raw_hkd, _, _ = prices[code]
-            if raw_hkd <= 0:
-                continue
-            cny = round(raw_hkd * HK_RATE, 2)
-            
-            # 逐字段转换
-            for field in ['price', 'stop_loss', 'take_profit', 'entry_low', 'entry_high',
-                          'last_reassessed_price', 'avg_price']:
-                old = d.get(field, 0) or 0
-                if old > 0:
-                    new_val = round(old * HK_RATE, 2)
-                    if abs(old - new_val) > 0.01:
-                        d[field] = new_val
-                        dec_updated = True
-            
-            # 处理嵌套的analysis字段
-            analysis = d.get('analysis', {})
-            for field in ['stop_loss', 'take_profit', 'entry_low', 'entry_high']:
-                old = analysis.get(field, 0) or 0
-                if old > 0:
-                    analysis[field] = round(old * HK_RATE, 2)
-            # 处理trigger字段
-            trigger = d.get('trigger', {})
-            for field in ['stop_loss', 'take_profit_zone']:
-                old = trigger.get(field, 0) or 0
-                if old > 0:
-                    trigger[field] = round(old * HK_RATE, 2)
-                elif isinstance(trigger.get(field), str) and '~' in str(trigger.get(field,'')):
-                    # take_profit_zone格式: "0~X"
-                    parts = str(trigger[field]).split('~')
-                    if len(parts) == 2 and parts[1]:
-                        parts[1] = str(round(float(parts[1]) * HK_RATE, 2))
-                    trigger[field] = '~'.join(parts)
-            # entry_zone: "X~Y"
-            ez = trigger.get('entry_zone', '')
-            if '~' in str(ez):
-                parts = str(ez).split('~')
-                for i, p in enumerate(parts):
-                    try:
-                        parts[i] = str(round(float(p) * HK_RATE, 2))
-                    except: pass
-                trigger['entry_zone'] = '~'.join(parts)
-        if dec_updated:
-            dec['total'] = len(dec['decisions'])
-            json.dump(dec, open(DECISIONS_PATH, 'w'), ensure_ascii=False, indent=2)
-    except Exception as e:
-        print(f"  [decisions.json CNY同步失败] {e}", flush=True)
-    # --- 结束 CNY同步 ---
-
     # 更新watchlist（只在价格变化时写入）
     changed = False
     for s in wl.get('stocks', []):