feat: add Quant OS A-share baseline

tools/jqdata_snapshot.py

@@ -0,0 +1,37 @@
+"""Authenticate interactively and build a canonical JQData index snapshot."""
+
+from __future__ import annotations
+
+import argparse
+import json
+from datetime import date
+
+from adapters.jqdata_local import (
+    authenticate,
+    fetch_index_daily_snapshot,
+    load_jqdata,
+)
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--index", default="000905.XSHG")
+    parser.add_argument("--start", required=True, type=date.fromisoformat)
+    parser.add_argument("--end", required=True, type=date.fromisoformat)
+    parser.add_argument("--output", required=True)
+    args = parser.parse_args()
+    sdk = load_jqdata()
+    authenticate(sdk)
+    paths = fetch_index_daily_snapshot(
+        sdk,
+        index_symbol=args.index,
+        start_date=args.start,
+        end_date=args.end,
+        output_dir=args.output,
+    )
+    print(json.dumps({"ok": True, "artifacts": paths}, indent=2, sort_keys=True))
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())