重构: 移除信号Tab(与市场Tab重复+死数据), 市场Tab改为温区regime+板块排行, 候选池迁入选自Tab, /api/market加regimes, 删/api/signals, 修change_pct显示bug和market.json兜底

server.py

@@ -1158,42 +1158,32 @@ def api_stock(code):
 
 @app.route("/api/market")
 def api_market():
-    """市场观察"""
+    """市场观察（2026-08-22 重构：板块快照 + A股/港股温区 regime）"""
     try:
         from mofin_db import get_conn, query_latest_market
         conn = get_conn()
         data = query_latest_market(conn)
+        # 当前市场温区（每市场取最新一条 market_regime）
+        try:
+            rows = conn.execute("""
+                SELECT mr.market, mr.date, mr.regime, mr.close,
+                       mr.above_ma20, mr.ma20_slope, mr.roc, mr.adx
+                FROM market_regime mr
+                JOIN (SELECT market, MAX(date) md FROM market_regime GROUP BY market) t
+                  ON mr.market = t.market AND mr.date = t.md
+                ORDER BY mr.market
+            """).fetchall()
+            data["regimes"] = [dict(r) for r in rows]
+        except Exception:
+            data["regimes"] = []
         conn.close()
-        if data and data.get("sectors"):
+        if data and (data.get("sectors") or data.get("regimes")):
             return jsonify(data)
     except Exception:
         pass
     return jsonify(_load_json(DATA_DIR / "market.json", {}))
 
 
-# ── 信号API（新增） ─────────────────────────────────────
-
-
-@app.route("/api/signals")
-def api_signals():
-    """最近信号 + 小果分析"""
-    try:
-        from mofin_db import get_conn
-        conn = get_conn()
-        signals = conn.execute("""
-            SELECT sn.id, sn.sector, sn.overall_sentiment,
-                   sn.summary, sn.source, sn.created_at,
-                   ss.signal_type, ss.severity
-            FROM signal_news sn
-            LEFT JOIN sector_signals ss ON sn.signal_id = ss.id
-            ORDER BY sn.id DESC LIMIT 20
-        """).fetchall()
-        conn.close()
-        return jsonify([dict(r) for r in signals])
-    except Exception as e:
-        return jsonify({"error": str(e)}), 500
-
-
 @app.route("/api/xiaoguo-scan")
 def api_xiaoguo_scan():
     """小果扫描统计（2026-08-19 小果已废弃收尸,返回空）"""