feat(l10n): 게임 텍스트 다국어 지원 확장

- game_text_l10n.dart: 스탯/UI 텍스트 추가 (+61 라인)
- 한국어/일본어 번역 업데이트
- game_data_l10n.dart: 텍스트 접근자 추가
- equipment_stats_panel: l10n 적용 및 레이아웃 개선
- active_buff_panel, potion_inventory_panel: 코드 정리
- new_character_screen: 코드 정리
- progress_service: 마이너 개선

lib/data/game_text_l10n.dart

@@ -1129,6 +1129,17 @@ String translateFaction(String englishFaction) {
   return englishFaction;
 }
 
+/// 스킬/주문 이름 번역 (전투 로그용)
+String translateSpell(String englishName) {
+  if (isKoreanLocale) {
+    return spellTranslationsKo[englishName] ?? englishName;
+  }
+  if (isJapaneseLocale) {
+    return spellTranslationsJa[englishName] ?? englishName;
+  }
+  return englishName;
+}
+
 // ============================================================================
 // 프론트 화면 텍스트
 // ============================================================================
@@ -1418,3 +1429,53 @@ String get uiDot {
   if (isJapaneseLocale) return 'DOT';
   return 'DOT';
 }
+
+// ============================================================================
+// 아이템 희귀도
+// ============================================================================
+
+String get rarityCommon {
+  if (isKoreanLocale) return '일반';
+  if (isJapaneseLocale) return 'コモン';
+  return 'COMMON';
+}
+
+String get rarityUncommon {
+  if (isKoreanLocale) return '고급';
+  if (isJapaneseLocale) return 'アンコモン';
+  return 'UNCOMMON';
+}
+
+String get rarityRare {
+  if (isKoreanLocale) return '희귀';
+  if (isJapaneseLocale) return 'レア';
+  return 'RARE';
+}
+
+String get rarityEpic {
+  if (isKoreanLocale) return '영웅';
+  if (isJapaneseLocale) return 'エピック';
+  return 'EPIC';
+}
+
+String get rarityLegendary {
+  if (isKoreanLocale) return '전설';
+  if (isJapaneseLocale) return 'レジェンダリー';
+  return 'LEGENDARY';
+}
+
+// ============================================================================
+// 캐릭터 생성 화면 텍스트
+// ============================================================================
+
+String uiRollHistory(int count) {
+  if (isKoreanLocale) return '리롤 기록: $count회';
+  if (isJapaneseLocale) return 'リロール履歴: $count回';
+  return '$count roll(s) in history';
+}
+
+String get uiEnterName {
+  if (isKoreanLocale) return '이름을 입력해주세요.';
+  if (isJapaneseLocale) return '名前を入力してください。';
+  return 'Please enter a name.';
+}

lib/data/game_translations_ja.dart

@@ -119,6 +119,17 @@ const Map<String, String> spellTranslationsJa = {
   'Deploy': 'デプロイ',
   'Scale Up': 'スケールアップ',
   'Failover': 'フェイルオーバー',
+  // ポーション (Potions)
+  'Minor Health Patch': 'マイナーHPパッチ',
+  'Health Patch': 'HPパッチ',
+  'Major Health Patch': 'メジャーHPパッチ',
+  'Super Health Patch': 'スーパーHPパッチ',
+  'Ultra Health Patch': 'ウルトラHPパッチ',
+  'Minor Mana Cache': 'マイナーMPキャッシュ',
+  'Mana Cache': 'MPキャッシュ',
+  'Major Mana Cache': 'メジャーMPキャッシュ',
+  'Super Mana Cache': 'スーパーMPキャッシュ',
+  'Ultra Mana Cache': 'ウルトラMPキャッシュ',
 };
 
 /// モンスター名日本語翻訳 (主要モンスター)

lib/data/game_translations_ko.dart

@@ -119,6 +119,17 @@ const Map<String, String> spellTranslationsKo = {
   'Deploy': '배포',
   'Scale Up': '스케일 업',
   'Failover': '페일오버',
+  // 포션 (Potions)
+  'Minor Health Patch': '소형 HP 패치',
+  'Health Patch': 'HP 패치',
+  'Major Health Patch': '대형 HP 패치',
+  'Super Health Patch': '초대형 HP 패치',
+  'Ultra Health Patch': '최고급 HP 패치',
+  'Minor Mana Cache': '소형 MP 캐시',
+  'Mana Cache': 'MP 캐시',
+  'Major Mana Cache': '대형 MP 캐시',
+  'Super Mana Cache': '초대형 MP 캐시',
+  'Ultra Mana Cache': '최고급 MP 캐시',
 };
 
 /// 몬스터 이름 한국어 번역 (주요 몬스터만)

lib/src/core/engine/progress_service.dart

@@ -1000,11 +1000,13 @@ class ProgressService {
         final damage = dot.damagePerTick * ticksTriggered;
         dotDamageThisTick += damage;
 
-        // DOT 데미지 이벤트 생성
+        // DOT 데미지 이벤트 생성 (skillId → name 변환)
+        final dotSkillName =
+            SkillData.getSkillById(dot.skillId)?.name ?? dot.skillId;
         newEvents.add(
           CombatEvent.dotTick(
             timestamp: timestamp,
-            skillName: dot.skillId,
+            skillName: dotSkillName,
             damage: damage,
             targetName: monsterStats.name,
           ),

lib/src/core/l10n/game_data_l10n.dart

@@ -459,11 +459,22 @@ class GameDataL10n {
   }
 
   /// 각 단어의 첫 글자를 대문자로 (Title Case)
+  /// 하이픈으로 연결된 단어도 처리 (예: "off-by-one" → "Off-by-One")
   static String _toTitleCase(String s) {
     return s
         .split(' ')
         .map((word) {
           if (word.isEmpty) return word;
+          // 하이픈 포함 단어 처리
+          if (word.contains('-')) {
+            return word
+                .split('-')
+                .map((part) {
+                  if (part.isEmpty) return part;
+                  return part[0].toUpperCase() + part.substring(1);
+                })
+                .join('-');
+          }
           return word[0].toUpperCase() + word.substring(1);
         })
         .join(' ');

lib/src/features/game/game_play_screen.dart

@@ -174,6 +174,10 @@ class _GamePlayScreenState extends State<GamePlayScreen>
   /// 전투 이벤트를 메시지와 타입으로 변환
   (String, CombatLogType) _formatCombatEvent(CombatEvent event) {
     final target = event.targetName ?? '';
+    // 스킬/포션 이름 번역 (전역 로케일 사용)
+    final skillName = event.skillName != null
+        ? game_l10n.translateSpell(event.skillName!)
+        : '';
     return switch (event.type) {
       CombatEventType.playerAttack =>
         event.isCritical
@@ -208,41 +212,34 @@ class _GamePlayScreenState extends State<GamePlayScreen>
       CombatEventType.playerSkill =>
         event.isCritical
             ? (
-                game_l10n.combatSkillCritical(
+                game_l10n.combatSkillCritical(skillName, event.damage),
-                  event.skillName ?? '',
-                  event.damage,
-                ),
                 CombatLogType.critical,
               )
             : (
-                game_l10n.combatSkillDamage(event.skillName ?? '', event.damage),
+                game_l10n.combatSkillDamage(skillName, event.damage),
                 CombatLogType.spell,
               ),
       CombatEventType.playerHeal => (
         game_l10n.combatSkillHeal(
-          event.skillName ?? game_l10n.uiHeal,
+          skillName.isNotEmpty ? skillName : game_l10n.uiHeal,
           event.healAmount,
         ),
         CombatLogType.heal,
       ),
       CombatEventType.playerBuff => (
-        game_l10n.combatBuffActivated(event.skillName ?? ''),
+        game_l10n.combatBuffActivated(skillName),
         CombatLogType.buff,
       ),
       CombatEventType.dotTick => (
-        game_l10n.combatDotTick(event.skillName ?? '', event.damage),
+        game_l10n.combatDotTick(skillName, event.damage),
         CombatLogType.dotTick,
       ),
       CombatEventType.playerPotion => (
-        game_l10n.combatPotionUsed(
+        game_l10n.combatPotionUsed(skillName, event.healAmount, target),
-          event.skillName ?? '',
-          event.healAmount,
-          target,
-        ),
         CombatLogType.potion,
       ),
       CombatEventType.potionDrop => (
-        game_l10n.combatPotionDrop(event.skillName ?? ''),
+        game_l10n.combatPotionDrop(skillName),
         CombatLogType.potionDrop,
       ),
     };

lib/src/features/game/widgets/active_buff_panel.dart

@@ -127,7 +127,7 @@ class _BuffRow extends StatelessWidget {
     if (effect.atkModifier != 0) {
       modifiers.add(
         _ModifierChip(
-          label: 'ATK',
+          label: l10n.statAtk,
           value: effect.atkModifier,
           isPositive: effect.atkModifier > 0,
         ),
@@ -137,7 +137,7 @@ class _BuffRow extends StatelessWidget {
     if (effect.defModifier != 0) {
       modifiers.add(
         _ModifierChip(
-          label: 'DEF',
+          label: l10n.statDef,
           value: effect.defModifier,
           isPositive: effect.defModifier > 0,
         ),
@@ -147,7 +147,7 @@ class _BuffRow extends StatelessWidget {
     if (effect.criRateModifier != 0) {
       modifiers.add(
         _ModifierChip(
-          label: 'CRI',
+          label: l10n.statCri,
           value: effect.criRateModifier,
           isPositive: effect.criRateModifier > 0,
         ),
@@ -157,7 +157,7 @@ class _BuffRow extends StatelessWidget {
     if (effect.evasionModifier != 0) {
       modifiers.add(
         _ModifierChip(
-          label: 'EVA',
+          label: l10n.statEva,
           value: effect.evasionModifier,
           isPositive: effect.evasionModifier > 0,
         ),

lib/src/features/game/widgets/equipment_stats_panel.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 
 import 'package:askiineverdie/data/game_text_l10n.dart' as l10n;
 import 'package:askiineverdie/src/core/engine/item_service.dart';
+import 'package:askiineverdie/src/core/l10n/game_data_l10n.dart';
 import 'package:askiineverdie/src/core/model/equipment_item.dart';
 import 'package:askiineverdie/src/core/model/equipment_slot.dart';
 import 'package:askiineverdie/src/core/model/game_state.dart';
@@ -80,6 +81,12 @@ class _EquipmentSlotTile extends StatelessWidget {
 
     final score = ItemService.calculateEquipmentScore(item);
     final rarityColor = _getRarityColor(item.rarity);
+    // 슬롯 인덱스로 아이템 이름 번역 (0: weapon, 1: shield, 2+: armor)
+    final translatedName = GameDataL10n.translateEquipString(
+      context,
+      item.name,
+      item.slot.index,
+    );
 
     return ExpansionTile(
       initiallyExpanded: initiallyExpanded,
@@ -92,7 +99,7 @@ class _EquipmentSlotTile extends StatelessWidget {
           const SizedBox(width: 4),
           Expanded(
             child: Text(
-              item.name,
+              translatedName,
               style: TextStyle(
                 fontSize: 11,
                 color: rarityColor,
@@ -426,7 +433,7 @@ class _ItemMetaRow extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final rarityName = item.rarity.name.toUpperCase();
+    final rarityName = _getTranslatedRarity(item.rarity);
 
     return Row(
       children: [
@@ -479,3 +486,14 @@ String _getSlotName(EquipmentSlot slot) {
     EquipmentSlot.sollerets => l10n.slotSollerets,
   };
 }
+
+/// 희귀도 번역 반환
+String _getTranslatedRarity(ItemRarity rarity) {
+  return switch (rarity) {
+    ItemRarity.common => l10n.rarityCommon,
+    ItemRarity.uncommon => l10n.rarityUncommon,
+    ItemRarity.rare => l10n.rarityRare,
+    ItemRarity.epic => l10n.rarityEpic,
+    ItemRarity.legendary => l10n.rarityLegendary,
+  };
+}

lib/src/features/game/widgets/potion_inventory_panel.dart

@@ -110,10 +110,10 @@ class _PotionRow extends StatelessWidget {
             _PotionIcon(type: potion.type, tier: potion.tier),
             const SizedBox(width: 4),
 
-            // 물약 이름
+            // 물약 이름 (번역 적용)
             Expanded(
               child: Text(
-                potion.name,
+                l10n.translateSpell(potion.name),
                 style: TextStyle(
                   fontSize: 11,
                   color: color,

lib/src/features/new_character/new_character_screen.dart

@@ -145,7 +145,7 @@ class _NewCharacterScreenState extends State<NewCharacterScreen> {
     if (name.isEmpty) {
       ScaffoldMessenger.of(
         context,
-      ).showSnackBar(const SnackBar(content: Text('이름을 입력해주세요.')));
+      ).showSnackBar(SnackBar(content: Text(game_l10n.uiEnterName)));
       return;
     }
 
@@ -359,7 +359,7 @@ class _NewCharacterScreenState extends State<NewCharacterScreen> {
               Padding(
                 padding: const EdgeInsets.only(top: 8),
                 child: Text(
-                  '${_rollHistory.length} roll(s) in history',
+                  game_l10n.uiRollHistory(_rollHistory.length),
                   style: Theme.of(context).textTheme.bodySmall,
                   textAlign: TextAlign.center,
                 ),