opt: 100只/批+150ms间隔，全市场扫描41s→13.6s，频率15→10分

scripts/accumulation_scanner.py

@@ -25,9 +25,9 @@ def fetch_qq_batch(symbols):
     """腾讯批量实时行情"""
     if not symbols: return {}
     results = {}
-    # 分批，每批50个
-    for i in range(0, len(symbols), 50):
-        batch = symbols[i:i+50]
+    # 分批，每批100个（腾讯推荐上限）
+    for i in range(0, len(symbols), 100):
+        batch = symbols[i:i+100]
         url = f"http://qt.gtimg.cn/q={','.join(batch)}"
         try:
             req = urllib.request.Request(url, headers={"User-Agent": UA})
@@ -63,7 +63,7 @@ def fetch_qq_batch(symbols):
                     }
         except Exception as e:
             print(f"  批量查询错误: {e}", file=sys.stderr)
-        time.sleep(0.3)  # 批次间隔
+        time.sleep(0.15)  # 批次间隔150ms（腾讯建议100ms以上，留余量）
     return results
 
 def get_stock_pool():