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/strategy_evaluator.py

@@ -14,20 +14,17 @@
 输出：写入 decisions.json 的 evaluation 字段 + accuracy_stats.json
 """
 import json
-import urllib.request
 import os
 import sys
 import re
 from datetime import datetime, timedelta
 from pathlib import Path
-from mo_data import read_decisions, read_portfolio
+from mo_data import read_decisions, read_portfolio, get_price, get_prices_batch
 from mofin_db import get_conn, write_holding_strategy
 
 DATA_DIR = Path(__file__).parent.parent / "data"
 ACCURACY_PATH = DATA_DIR / "accuracy_stats.json"
 
-UA = "Mozilla/5.0"
-
 
 def load_json(path, default=None):
     try:
@@ -58,43 +55,15 @@ def fetch_prices(codes):
     except Exception:
         pass
     
-    # Fallback: 腾讯 API
-    symbols = []
-    code_map = {}
-    for c in codes:
-        sym = f"hk{c}" if len(c) == 5 else f"sh{c}" if c.startswith(("5", "6", "9")) else f"sz{c}"
-        symbols.append(sym)
-        code_map[sym] = c
-    url = f"http://qt.gtimg.cn/q={','.join(symbols)}"
+    # Fallback: mo_data.get_prices_batch
     try:
-        req = urllib.request.Request(url, headers={"User-Agent": UA})
-        resp = urllib.request.urlopen(req, timeout=10)
-        text = resp.read().decode("gbk")
+        raw = get_prices_batch(codes)
+        if raw:
+            return {code: {"name": "", "price": p, "prev_close": 0, "change_pct": chg or 0,
+                          "high": 0, "low": 0} for code, (p, chg) in raw.items()}
     except Exception as e:
         print(f"行情拉取失败: {e}", file=sys.stderr)
-        return {}
-    prices = {}
-    for line in text.strip().split("\n"):
-        line = line.strip()
-        if not line or "=" not in line:
-            continue
-        raw = line.split("=", 1)[1].strip().strip('"').strip(";")
-        fields = raw.split("~")
-        if len(fields) < 33:
-            continue
-        sym = line.split("=", 1)[0].strip().lstrip("v_")
-        orig = code_map.get(sym)
-        if not orig:
-            continue
-        prices[orig] = {
-            "name": fields[1],
-            "price": float(fields[3]) if fields[3] else 0,
-            "prev_close": float(fields[4]) if fields[4] else 0,
-            "change_pct": float(fields[32]) if fields[32] else 0,
-            "high": float(fields[33]) if fields[33] else 0,
-            "low": float(fields[34]) if fields[34] else 0,
-        }
-    return prices
+    return {}
 
 
 def parse_tech_snapshot(decision):