feat: apply captured API configuration for Blue Splash event

src/routes/combination/+page.svelte

@@ -26,7 +26,7 @@
     effectiveActiveProbability,
     eventBonusBreakdown,
     eventChallengeSongScoreBonusPercent,
-    eventOptimizationCardEligible,
+    eventOptimizationCardCandidates,
     eventPointIndex,
     generateAnchoredCombinationCandidates,
     generateCombinationCandidates,
@@ -111,10 +111,7 @@
   const REDUCTION_LOCK_OPTIONS = [null, 0, 4, 8, 12] as const;
   const allCards = cardSummary.cards;
   const fiveStarCards = allCards.filter((card) => card.rarity === 5);
-  const eventBonusCharacters = new Set<string>(events.flatMap((event) => [...event.bonusCharacterIds, ...('chapters' in event ? event.chapters.flatMap((chapter) => chapter.bonusCharacterIds) : [])]));
-  const eligibleCards = eventMode
-    ? allCards.filter((card) => eventOptimizationCardEligible(card, eventBonusCharacters))
-    : fiveStarCards;
+  let eligibleCards = fiveStarCards;
   const cardById = new Map(allCards.map((card) => [card.id, card]));
   const allCharts = exactChartCatalog.charts;
   const initialReleaseClock = createInitialReleaseClock($page.data?.serverNow);
@@ -256,6 +253,9 @@
   $: currentEvent = eventMode
     ? activeEventAt(events, releaseNow)
     : null;
+  $: eligibleCards = eventMode
+    ? eventOptimizationCardCandidates(allCards, currentEvent)
+    : fiveStarCards;
   $: songs = Array.from(new Map(charts.map((chart) => [chart.songId, { id: chart.songId, title: chart.title }])).values());
   $: if (!songs.some((song) => song.id === selectedSongId)) selectedSongId = songs[0]?.id ?? '';
   $: selectedChart = charts.find((chart) => chart.songId === selectedSongId && chart.difficulty === difficulty);
@@ -1237,6 +1237,7 @@
       <div class="event-summary" role="status">
         <strong>{currentEvent.name}</strong>
         <span>{new Date(currentEvent.startsAt).toLocaleString('ko-KR', { timeZone: 'Asia/Seoul' })} ~ {new Date(currentEvent.endsAt).toLocaleString('ko-KR', { timeZone: 'Asia/Seoul' })} (한국 시간)</span>
+        {#if currentEvent.exchangeEndsAt}<span>교환소 종료: {new Date(currentEvent.exchangeEndsAt).toLocaleString('ko-KR', { timeZone: 'Asia/Seoul' })} (한국 시간)</span>{/if}
         <span>현재 대상: {currentEvent.bonusCharacterIds.map((id) => leaderMembers.find((card) => card.characterId === id)?.name ?? id).join(', ')}</span>
         <span>과제곡: {Object.keys(currentEvent.challengeSongBonusCardIds).map((id) => songs.find((song) => song.id === id)?.title ?? '채보 준비 중').join(', ')}</span>
         <span>대상 멤버 1명당 +{currentEvent.formationBonusPercent}% · 신규 카드 추가 +{currentEvent.featuredCardBonusPercent}% · 과제곡 대응 카드 스코어 +{currentEvent.challengeSongScoreBonusPercent}%</span>
@@ -1276,7 +1277,7 @@
   {/if}
   <section class="panel" aria-labelledby="conditions-title">
     <fieldset class="search-inputs" disabled={running}>
-    <div class="section-title"><div><span>01</span><h2 id="conditions-title">탐색 조건</h2></div><strong>{ownedCardsOnly ? (eventMode ? '보유 이벤트 후보 대상' : '보유 5성 대상') : (eventMode ? '5성 + 대상 멤버 전 레어리티' : '5성 전체 대상')}</strong></div>
+    <div class="section-title"><div><span>01</span><h2 id="conditions-title">탐색 조건</h2></div><strong>{ownedCardsOnly ? (eventMode ? '보유 이벤트 후보 대상' : '보유 5성 대상') : (eventMode ? '4·5성 + 대상 멤버 전 레어리티' : '5성 전체 대상')}</strong></div>
     <div class="song-fields">
       <div class="song-picker-field"><SongPicker {charts} {difficulty} bind:value={selectedSongId} on:change={() => result = null} /></div>
       <label>난이도<select bind:value={difficulty} on:change={() => result = null}>{#each difficulties as value}<option {value}>{difficultyLabel(value)}</option>{/each}</select></label>