알림목록 시간봉 필터 추가

frontend/src/utils/tradeNotificationListLayout.ts

@@ -1,4 +1,8 @@
 import { getUiPreferences, patchUiPreferences } from './uiPreferencesDb';
+import {
+  normalizeStartCandleType,
+  STRATEGY_CANDLE_TYPE_OPTIONS,
+} from './strategyStartNodes';
 import {
   DEFAULT_TRADE_NOTIFICATION_GRID_PRESET,
   normalizeTradeNotificationGridPreset,
@@ -38,3 +42,21 @@ export function loadTradeNotificationListSort(): TradeNotificationListSort {
 export function saveTradeNotificationListSort(sort: TradeNotificationListSort): void {
   patchUiPreferences({ tradeNotifications: { listSort: sort } });
 }
+
+/** 알림 목록 시간봉 필터 — '' = 전체 */
+export type TradeNotificationCandleFilter = '' | (typeof STRATEGY_CANDLE_TYPE_OPTIONS)[number]['value'];
+
+export function loadTradeNotificationCandleFilter(): TradeNotificationCandleFilter {
+  const raw = getUiPreferences().tradeNotifications?.candleFilter;
+  if (raw == null || raw === '') return '';
+  const n = normalizeStartCandleType(raw);
+  return STRATEGY_CANDLE_TYPE_OPTIONS.some(o => o.value === n)
+    ? (n as TradeNotificationCandleFilter)
+    : '';
+}
+
+export function saveTradeNotificationCandleFilter(filter: TradeNotificationCandleFilter): void {
+  patchUiPreferences({ tradeNotifications: { candleFilter: filter || '' } });
+}
+
+export { STRATEGY_CANDLE_TYPE_OPTIONS as TRADE_NOTIFICATION_CANDLE_FILTER_OPTIONS };