fix: apply event song bonus to final score

src/routes/combination/+page.svelte

@@ -55,6 +55,7 @@
     overallPower: number;
     perfectNoteScore: number;
     directSongScoreBonusPercent: number;
+    finalScoreBonusPercent: number;
     heuristic: number;
     skillPotential: number;
     eventBonusPercent?: number;
@@ -66,6 +67,7 @@
     overallPower: number;
     cards?: OptimizerCard[];
     directSongScoreBonusPercent?: number;
+    finalScoreBonusPercent?: number;
     eventBonusPercent?: number;
     rankingMultiplier?: number;
     achievementProbabilities?: ScoreAchievementProbabilities;
@@ -888,13 +890,14 @@
     const eventSongScoreBonus = currentEvent
       ? eventChallengeSongScoreBonusPercent(currentEvent, selectedSongId, cards.map((card) => card.id))
       : 0;
-    const directSongScoreBonusPercent = boardEffects.directSongScoreBonusPercent + eventSongScoreBonus;
+    const directSongScoreBonusPercent = boardEffects.directSongScoreBonusPercent;
     const rankingMultiplier = eventPtMode && eventBonus ? 1 + eventBonus.totalPercent / 100 : undefined;
     return {
       cards: optimizerCards,
       overallPower: power.overallPower,
       perfectNoteScore: perfectNoteScoreFromPower(power.overallPower, selectedChart?.scoreRatio ?? null),
       directSongScoreBonusPercent,
+      finalScoreBonusPercent: eventSongScoreBonus,
       heuristic: power.overallPower * (1 + skillPotential / 500) * (rankingMultiplier ?? 1) * (1 + eventSongScoreBonus / 100),
       skillPotential,
       optimizationObjective: eventPtMode ? 'expected' : 'maximum',
@@ -1425,7 +1428,7 @@
                 <small>{eventPtMode ? 'PT 비교 지수' : eventScoreMode ? '이벤트 최고 점수' : '최고 점수'}</small>
                 <strong>{eventPtMode ? eventPointIndex(ranking.result.expectedScore, ranking.eventBonusPercent ?? 0).toLocaleString('ko-KR') : ranking.result.theoreticalMaxScore.toLocaleString('ko-KR')}</strong>
                 {#if eventMode}<i>PT 획득 보너스 +{ranking.eventBonusPercent ?? 0}% · 평균 점수 {ranking.result.expectedScore.toLocaleString('ko-KR')}</i>
-                  {#if currentEvent}<i>과제곡 스코어 +{eventChallengeSongScoreBonusPercent(currentEvent, selectedSongId, ranking.result.order)}%</i>{/if}
+                  {#if currentEvent}<i>최종 점수에 과제곡 보너스 +{ranking.finalScoreBonusPercent ?? 0}%</i>{/if}
                 {/if}
                 {#if comparableToBaseline && !ranking.isBaseline}<i>{scoreDelta(ranking.result.theoreticalMaxScore, baselineResult!.theoreticalMaxScore)}</i>{/if}
                 {#if eventMode}<b class:complete={displayedAdditionalAwakenings(ranking) === 0}>추가 개화 {displayedAdditionalAwakenings(ranking)}회</b>