看股功能更新

frontend/src/api/client.ts

@@ -135,14 +135,17 @@ export async function getStockPreview(
     adjust?: AdjustMode;
     timeframe?: Timeframe;
     mas?: number[];
+    /** 向前翻页：返回该日期（不含）之前的 limit 根 K 线 + 预热好的指标 */
+    end?: string;
   } = {},
 ): Promise<PreviewResponse> {
-  const { limit = 10000, adjust = 'qfq', timeframe = '1d', mas } = opts;
+  const { limit = 500, adjust = 'qfq', timeframe = '1d', mas, end } = opts;
   const q = new URLSearchParams({
     limit: String(limit),
     adjust,
     timeframe,
     ...(mas?.length ? { mas: mas.join(',') } : {}),
+    ...(end ? { end } : {}),
   });
   const res = await apiFetch(`/api/screener/preview/${encodeURIComponent(tsCode)}?${q.toString()}`);
   if (!res.ok) throw new ApiError(await readError(res, `获取个股详情失败 (HTTP ${res.status})`), res.status);