feat: add green board efficiency analysis

src/lib/engine/board-effects.ts

@@ -40,6 +40,7 @@ export type BoardEffectsResult = {
 };
 
 const stats: readonly UnitStat[] = ['performance', 'technique', 'sense'];
+const generationBonusCap = 900;
 const emptyStats = (): Record<UnitStat, number> => ({ performance: 0, technique: 0, sense: 0 });
 const groupingLabels: Record<string, string> = {
   'grp-gen_0': '0기생', 'grp-gen_1': '1기생', 'grp-gen_2': '2기생', 'grp-gen_3': '3기생',
@@ -140,6 +141,7 @@ export function calculateBoardEffects(
   let scoreSupportPercent = 0;
   let directSongScoreBonusPercent = 0;
   const multipliers = connectionMultipliers(summary, memberBoards, connections);
+  const generationBonusByCardAndGrouping: Record<string, Record<string, number>> = {};
 
   for (const [ownerId, activeGroupIds] of Object.entries(memberBoards)) {
     for (const groupId of activeGroupIds) {
@@ -172,9 +174,19 @@ export function calculateBoardEffects(
 
       const destination = effect.type.endsWith('_permil_up') ? rateByCardId : flatByCardId;
       const normalizedValue = effect.type.endsWith('_permil_up') ? value / 10 : value;
-      const effectTargets = targets(effect, ownerId, cards).filter((card) =>
-        effect.type !== 'all_parameter_up_for_character_grouping' || overrides?.generationBonusByCardId?.[card.id] === undefined
-      );
+      const effectTargets = targets(effect, ownerId, cards);
+      if (effect.type === 'all_parameter_up_for_character_grouping') {
+        const groupingId = effect.targetId ?? 'unknown-grouping';
+        for (const card of effectTargets) {
+          if (overrides?.generationBonusByCardId?.[card.id] !== undefined) continue;
+          const cardBonuses = generationBonusByCardAndGrouping[card.id] ??= {};
+          const currentBonus = cardBonuses[groupingId] ?? 0;
+          const appliedValue = Math.max(0, Math.min(normalizedValue, generationBonusCap - currentBonus));
+          cardBonuses[groupingId] = currentBonus + appliedValue;
+          for (const stat of stats) destination[card.id][stat] += appliedValue;
+        }
+        continue;
+      }
       for (const card of effectTargets) {
         for (const stat of affectedStats(effect.type)) destination[card.id][stat] += normalizedValue;
       }
@@ -183,7 +195,8 @@ export function calculateBoardEffects(
 
   for (const [cardId, value] of Object.entries(overrides?.generationBonusByCardId ?? {})) {
     if (!flatByCardId[cardId]) continue;
-    for (const stat of stats) flatByCardId[cardId][stat] += value;
+    const cappedValue = Math.max(0, Math.min(generationBonusCap, value));
+    for (const stat of stats) flatByCardId[cardId][stat] += cappedValue;
   }
 
   // 쿨타임 감소는 현재 보드 상태가 아니라 최적화 변수다. 모든 멤버가 네 경우를 항상 탐색한다.