fix: 全线港股前缀修复 + 币种统一

per_stock_reassess.py:
  - 港股5位代码前缀优先（0开头不匹配sz）
  - 删除CNY转换，存Tencent原始HKD值
stale_push_wlin.py fetch_trend_data:
  - 港股5位代码前缀优先
strategy_review.py (x2):
  - 港股5位代码前缀优先
验证：
  建滔 price=97.2 HKD SL=94.62 HKD ✓
  腾讯 price=421.2 HKD SL=409.73 HKD ✓
  中芯H price=88.8 HKD SL=84.8 HKD ✓
  A股不受影响 ✓

data/stocks/300035.json

@@ -51,6 +51,11 @@
       "content": "**中科电气(300035) / 德明利(001309)** — 前者能源金属+4.27%但-28%深套持有；后者半导体板块受益，+9.9%持有。",
       "report_id": "cron_99c06255590a_2026-06-25_08-33-37"
     },
+    {
+      "time": "2026-06-30T08:55:46.632204",
+      "content": "• 中科电气(300035) 14.19(平) 距止损13.74仅3%",
+      "report_id": "cron_99c06255590a_2026-06-30_08-40-17"
+    },
     {
       "time": "2026-06-02T12:55:54.834592",
       "content": "| 中科电气(300035) | 16.44 | -2.66% | 1.77% | 深套持有，止损15.0 |",
@@ -506,6 +511,11 @@
       "content": "**2. 中科电气(300035) 距止损16.01仅1.8%！** 现16.31(+4.63%)仓2.73%浮亏-27%。今日虽反弹但量价齐跌卖盘占优，止损16.01设好不破不移。",
       "report_id": "cron_d42f2ce3b479_2026-06-11_20-30-16"
     },
+    {
+      "time": "2026-06-30T08:55:46.708460",
+      "content": "**A股概览：** 上周五系统大跌(-2.26%/-3.44%)后弱反弹，科创50领涨+4.61%带动半导体板块。中芯国际A(688981) +19.8%浮盈距目标+4.1%、中芯H(00981) +",
+      "report_id": "cron_d42f2ce3b479_2026-06-29_20-08-09"
+    },
     {
       "time": "2026-06-29T08:55:56.391301",
       "content": "- **中科电气(300035)** — 现价14.19，止损13.74（距3.2%）。新能电池板块本周-4.29%，中科电气持续走弱。",