feat: 增加自选列表分时小图

frontend/src/lib/queryKeys.ts

@@ -26,6 +26,9 @@ export const QK = {
   watchlistQuotes:      ['watchlist-quotes'] as const,
   watchlistEnriched:    (ext?: string) => ['watchlist-enriched', ext] as const,
   watchlistKlineBatch:  (symbols: string) => ['watchlist-kline-batch', symbols] as const,
+  // 不用 watchlist- 前缀: 避免被 SSE quotes_updated 高频失效(expert 1s/pro 2s)
+  // 导致每次都拉 TickFlow 触限流。分时图用固定 refetchInterval 刷新即可。
+  minuteBatch:          (symbols: string) => ['minute-batch', symbols] as const,
   instrumentSearch:     (q: string) => ['instrument-search', q] as const,
 
   // Screener