feat: add combination search workflow

src/lib/engine/board-effects.ts

@@ -26,6 +26,10 @@ export type BoardConnections = {
   placements: Readonly<Record<string, Readonly<Record<string, string>>>>;
   cards: readonly BoardConnectionCard[];
 };
+export type BoardEffectOverrides = {
+  generationBonusByCardId?: Readonly<Record<string, number>>;
+  directSongScoreBonusPercent?: number;
+};
 export type BoardEffectsResult = {
   flatByCardId: Record<string, Record<UnitStat, number>>;
   rateByCardId: Record<string, Record<UnitStat, number>>;
@@ -126,7 +130,8 @@ export function calculateBoardEffects(
   cards: readonly BoardEffectCard[],
   leaderCharacterId: string,
   song?: BoardEffectSong | null,
-  connections?: BoardConnections | null
+  connections?: BoardConnections | null,
+  overrides?: BoardEffectOverrides | null
 ): BoardEffectsResult {
   const flatByCardId = Object.fromEntries(cards.map((card) => [card.id, emptyStats()]));
   const rateByCardId = Object.fromEntries(cards.map((card) => [card.id, emptyStats()]));
@@ -167,12 +172,20 @@ export function calculateBoardEffects(
 
       const destination = effect.type.endsWith('_permil_up') ? rateByCardId : flatByCardId;
       const normalizedValue = effect.type.endsWith('_permil_up') ? value / 10 : value;
-      for (const card of targets(effect, ownerId, cards)) {
+      const effectTargets = targets(effect, ownerId, cards).filter((card) =>
+        effect.type !== 'all_parameter_up_for_character_grouping' || overrides?.generationBonusByCardId?.[card.id] === undefined
+      );
+      for (const card of effectTargets) {
         for (const stat of affectedStats(effect.type)) destination[card.id][stat] += normalizedValue;
       }
     }
   }
 
+  for (const [cardId, value] of Object.entries(overrides?.generationBonusByCardId ?? {})) {
+    if (!flatByCardId[cardId]) continue;
+    for (const stat of stats) flatByCardId[cardId][stat] += value;
+  }
+
   // 쿨타임 감소는 현재 보드 상태가 아니라 최적화 변수다. 모든 멤버가 네 경우를 항상 탐색한다.
   const allowedCooldownReductionsByCardId = Object.fromEntries(cards.map((card) => [
     card.id,
@@ -184,6 +197,6 @@ export function calculateBoardEffects(
     activationRateUpByCardId,
     allowedCooldownReductionsByCardId,
     scoreSupportPercent,
-    directSongScoreBonusPercent: Math.min(10, directSongScoreBonusPercent)
+    directSongScoreBonusPercent: overrides?.directSongScoreBonusPercent ?? Math.min(10, directSongScoreBonusPercent)
   };
 }