移除自选和回测功能

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

serve/backend/app/api/data.py

@@ -505,7 +505,7 @@ def _compute_storage(data_dir: Path) -> dict:
         stats[f"{key}_size_mb"] = sz
 
     # total: 再加上其他零散文件(pools, financials, capabilities.json 等)
-    other_dirs = ["pools", "financials", "backtest_results", "screener_results", "ai_cache"]
+    other_dirs = ["pools", "financials", "screener_results", "ai_cache"]
     for name in other_dirs:
         d = data_dir / name
         if d.exists():
@@ -629,7 +629,7 @@ def clear_data(request: Request):
         "kline_daily", "kline_daily_enriched", "kline_index_daily", "kline_index_enriched",
         "kline_etf_daily", "kline_etf_enriched", "kline_etf_minute", "kline_minute",
         "adj_factor", "adj_factor_etf", "instruments", "instruments_index", "instruments_etf", "pools", "financials",
-        "backtest_results", "screener_results", "ai_cache",
+        "screener_results", "ai_cache",
     ):
         d = data_dir / sub
         if d.exists():