migrate: live_prices+mtf+capital_flow DB read/write, cleanup remaining JSON refs

strategy_lifecycle.py

@@ -989,7 +989,7 @@ def reassess_strategy(code, name, price, cost, shares, current_action,
     time_horizon = "2周~3月"
     position_advice = "中等仓位"
     try:
-        mtf_cache = json.load(open("/home/hmo/web-dashboard/data/multi_tf_cache.json"))
+        mtf_cache = mtf._load_mtf_cache()
         stock_data = mtf_cache.get(code, {})
         daily_klines = stock_data.get("daily", [])
         fund = stock_data.get("fundamentals", {})
@@ -1537,11 +1537,8 @@ def load_stock_news_sentiment(code):
 def load_fundamentals(code):
     """加载个股基本面"""
     try:
-        path = "/home/hmo/web-dashboard/data/multi_tf_cache.json"
-        if not os.path.exists(path):
-            return {}
-        m = json.load(open(path))
-        return m.get(code, {}).get("fundamentals", {}) or {}
+        cache = mtf._load_mtf_cache()
+        return cache.get(code, {}).get("fundamentals", {}) or {}
     except Exception:
         return {}