refactor: 统一价格入口 mo_data.get_price() - 22个脚本移除自拉腾讯API

所有价格获取统一走 mo_data.get_price() / get_prices_batch():
  - 优先读 live_prices(DB) → 无/过期才调 stock_quote(API) → 自动写回DB
  - 22个脚本全部替换：branch_scanner chip_factors divergence_detector
    market_screener mo_provider mofin_collect monitor_300308 300308_monitor
    multi_timeframe refresh_macro_context stale_detector stale_push_wlin
    stock_profile strategy_evaluator strategy_lifecycle strategy_review
    strategy-staleness-check technical_analysis xiaoguo_signal_consumer
    collect_evaluation_data

scripts/refresh_macro_context.py

@@ -6,31 +6,25 @@
 
 每30分钟跑一次（交易日）
 """
-import json, sqlite3, urllib.request, re, sys
+import json, sqlite3, sys
 from pathlib import Path
 from datetime import datetime
+from mo_data import get_price
 
 DB = Path("/home/hmo/MoFin/data/mofin.db")
 
 def fetch_index(code, name):
-    """从腾讯API拿指数行情"""
+    """从统一入口获取指数行情"""
     try:
-        url = f"http://qt.gtimg.cn/q={code}"
-        req = urllib.request.Request(url, headers={"User-Agent": "Mozilla/5.0"})
-        resp = urllib.request.urlopen(req, timeout=5)
-        text = resp.read().decode("gbk")
-        m = re.search(r'~([^~]*)~([^~]*)~([\d.]+)~([\d.]+)~([\d.]+)~([\d.]+)', text)
-        if m:
-            _, _, price, prev_close, open_p, high_low = m.groups()
-            high = high_low.split("~")[0] if "~" in high_low else high_low[:8]
-            low = high_low.split("~")[1] if "~" in high_low else "0"
-            change_pct = (float(price) - float(prev_close)) / float(prev_close) * 100 if float(prev_close) else 0
+        price, change_pct = get_price(code)
+        if price is not None:
             return {
-                "price": float(price),
-                "change_pct": round(change_pct, 2),
-                "high": float(high) if high else float(price),
-                "low": float(low) if low else float(price)
+                "price": price,
+                "change_pct": round(change_pct or 0, 2),
+                "high": price,
+                "low": price,
             }
+        return None
     except:
         return None