feat: macro_context/market数据全部DB优先，JSON回退

- 建 macro_context_log 表，macro_context_collector.py 双写
- strategy_lifecycle.py load_macro_context() 优先DB
- strategy_tree.py detect_scenario() 优先DB
- stale_push_wlin.py load_macro_line() 优先DB
- xiaoguo_signal_consumer.py 大盘判断优先DB
- stock_profile.py load_macro() 优先DB
- system_audit.py 管道审计改查DB market_snapshots
- JSON保留作fallback，确保过渡期不中断

scripts/stale_push_wlin.py

@@ -112,8 +112,18 @@ def load_macro_line():
     """加载大盘和市场的简要描述"""
     parts = []
     try:
-        with open(MACRO_CTX) as f:
-            m = json.load(f).get("structure", {})
+        # 优先 DB
+        import sqlite3
+        db = sqlite3.connect("/home/hmo/MoFin/data/mofin.db")
+        row = db.execute(
+            "SELECT structure FROM macro_context_log "
+            "WHERE has_valid_data=1 ORDER BY created_at DESC LIMIT 1"
+        ).fetchone()
+        db.close()
+        if row and row[0]:
+            m = json.loads(row[0])
+        else:
+            raise ValueError("no db data")
         overall = m.get("overall", "neutral")
         desc = m.get("description", "")
         if "bearish" in overall:
@@ -123,7 +133,19 @@ def load_macro_line():
         elif desc:
             parts.append(f"大盘{desc}")
     except Exception:
-        pass
+        try:
+            with open(MACRO_CTX) as f:
+                m = json.load(f).get("structure", {})
+            overall = m.get("overall", "neutral")
+            desc = m.get("description", "")
+            if "bearish" in overall:
+                parts.append("大盘偏弱")
+            elif overall == "bullish":
+                parts.append("大盘偏强")
+            elif desc:
+                parts.append(f"大盘{desc}")
+        except Exception:
+            pass
     try:
         with open(MARKET_JSON) as f:
             mk = json.load(f)