修复 Tushare 返回的 ts_code 缺少交易所后缀导致查不到数据

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

tushare/src/fetcher.py

@@ -34,6 +34,10 @@ def fetch_contract(
     ]
     df = df[[c for c in cols if c in df.columns]].copy()
 
+    # 确保 ts_code 列与查询时传入的完整代码一致（Tushare 返回的可能不带交易所后缀）
+    if "ts_code" in df.columns:
+        df["ts_code"] = ts_code
+
     numeric = ["open", "high", "low", "close", "vol", "amount", "oi", "oi_chg", "pre_close"]
     for c in numeric:
         if c in df.columns: