feat: 新增行业领涨股扫描 xiaoguo_scanner

- 新增 fetch_sector_leaders() 从 market.json 读取热门行业领涨股
- 三路并行：同花顺技术榜 + 行业领涨 + 东财热榜(502降级)
- 优先级排序：行业领涨 > 同花顺榜 > 东财热榜
- 名称→代码映射使用本地缓存，避免频繁调用akshare
- 更新文档

docs/xiaoguo-signal-pipeline.md

@@ -23,9 +23,15 @@ xiaoguo_scanner.py（每5分钟跑一轮）
 
 ## 二、数据源
 
-### 榜单来源
+### 榜单来源（三路并行）
-- 同花顺技术面榜单（akshare），覆盖技术指标类信号
+1. **同花顺技术面榜单**（akshare，6看多+5看空轮换）— 技术指标类信号
-- 东方财富热榜（akshare.stock_hot_rank_em）因502不可用，降级静默
+2. **行业领涨股**（从 market.json 读取，每轮都跑）— 涨幅>2.5%板块的领涨龙头
+3. **东方财富热榜**（akshare.stock_hot_rank_em）— 因502不可用，降级静默
+
+### 三路数据合并规则
+优先级：行业领涨 > 同花顺技术榜 > 东方财富热榜
+同只股票不重复处理，最多15只/轮。
+行业领涨股保证能被扫描到，不会被技术榜单的股票挤掉。
 
 ### 新闻来源
 - 东方财富个股新闻API（akshare.stock_news_em）

xiaoguo_scanner.py

@@ -45,6 +45,10 @@ BEARISH_BOARDS = [
 ALL_BOARDS = BULLISH_BOARDS + BEARISH_BOARDS
 BULLISH_COUNT = len(BULLISH_BOARDS)
 
+# 行业领涨股扫描（不轮换，每轮都跑）
+# 从 market.json 读热门行业领涨股
+SECTOR_HOT_THRESHOLD = 2.5  # 板块涨幅>2.5%时捞它的领涨股
+
 
 def clean_proxy():
     for k in ['http_proxy','https_proxy','HTTP_PROXY','HTTPS_PROXY']:
@@ -112,6 +116,53 @@ def fetch_rotating_board():
     return [], is_bullish
 
 
+def fetch_sector_leaders():
+    """从 market.json 读热门行业领涨股"""
+    mkt_path = DATA_DIR / "market.json"
+    if not mkt_path.exists():
+        return []
+    try:
+        mkt = json.loads(mkt_path.read_text())
+        sectors = mkt.get("sectors", [])
+        
+        # 代码→名称映射（优先用本地缓存，避免每次跑都调akshare）
+        cache_path = DATA_DIR / "stock_name_code_cache.json"
+        name_to_code = {}
+        if cache_path.exists():
+            name_to_code = json.loads(cache_path.read_text())
+        if not name_to_code:
+            try:
+                import akshare as ak
+                df = ak.stock_info_a_code_name()
+                for _, r in df.iterrows():
+                    name_to_code[r["简称"]] = r["代码"]
+                cache_path.write_text(json.dumps(name_to_code, ensure_ascii=False))
+                print(f"  名称代码映射: {len(name_to_code)}只已缓存", flush=True)
+            except Exception as e:
+                print(f"  名称代码映射加载失败: {e}", flush=True)
+        
+        leaders = []
+        seen = set()
+        for s in sectors:
+            chg = s.get("change", 0) or 0
+            lead_name = s.get("lead_stock", "")
+            if chg < SECTOR_HOT_THRESHOLD or not lead_name or lead_name in seen:
+                continue
+            seen.add(lead_name)
+            code = name_to_code.get(lead_name, "")
+            if not code:
+                continue
+            leaders.append({
+                "code": code,
+                "name": lead_name,
+                "source": f"行业领涨-{s['name']}+{chg:+.1f}%",
+            })
+        return leaders
+    except Exception as e:
+        print(f"  行业领涨获取失败: {e}", flush=True)
+    return []
+
+
 def get_scanned_codes(conn):
     """取1小时内已扫描过的代码"""
     rows = conn.execute(
@@ -192,10 +243,11 @@ def main():
     # 1. 拉板
     hot = fetch_hot_board()
     rotating, is_bullish = fetch_rotating_board()
+    leaders = fetch_sector_leaders()
     elapsed = time.time() - start_time
-    print(f"榜单: 东方财富{len(hot)}只, 同花顺{len(rotating)}只 ({elapsed:.0f}s)", flush=True)
+    print(f"榜单: 东方财富{len(hot)}只, 同花顺{len(rotating)}只, 行业领涨{len(leaders)}只 ({elapsed:.0f}s)", flush=True)
 
-    if not hot and not rotating:
+    if not hot and not rotating and not leaders:
         conn.close()
         return
 
@@ -210,7 +262,8 @@ def main():
 
     # 2. 合并去重 + 看空榜只保留持仓股
     all_stocks = {}
-    for s in hot + rotating:
+    # 行业领涨优先（热门板块龙头）
+    for s in (leaders if is_bullish else []) + hot + rotating:
         code = s["code"]
         code_stripped = code.lstrip("0")
         if not is_bullish: