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/branch_scanner.py

@@ -16,28 +16,21 @@ branch_scanner.py — 分支自成长数据采集器（全静默）
 
 import json, sys, re
 from datetime import datetime
-from urllib.request import Request, urlopen
 from mo_data import read_decisions
+from mo_data import get_price as md_get_price
 from mofin_db import get_conn, write_holding_strategy
 
 SCANNER_STATE = "/home/hmo/web-dashboard/data/scanner_state.json"
 
 
 def get_price(code):
-    # DB 优先
-    try: from mofin_db import get_price_from_db; p, _ = get_price_from_db(code); return p if p else 0
-    except: pass
-    # Fallback: 腾讯
-    mkt = "sh" if code.startswith("6") or code.startswith("5") else "sz"
-    url = f"http://qt.gtimg.cn/q={mkt}{code}"
-    req = Request(url, headers={"User-Agent": "Mozilla/5.0"})
+    # 统一走 mo_data.get_price（含 DB 优先 + API 兜底）
     try:
-        resp = urlopen(req, timeout=5).read().decode("gbk")
-        parts = resp.split("~")
-        if len(parts) > 3:
-            return float(parts[3])
-    except Exception:
-        return None
+        p, _ = md_get_price(code)
+        return p if p else 0
+    except:
+        try: from mofin_db import get_price_from_db; p, _ = get_price_from_db(code); return p if p else 0
+        except: return None
 
 
 def get_scenario():