refactor(model): SpellBook을 SkillBook으로 리네이밍

- 게임 컨셉에 맞게 주문서 → 스킬북 용어 통일
- 관련 모든 참조 일괄 변경

lib/src/core/model/game_state.dart

@@ -21,7 +21,7 @@ class GameState {
     Stats? stats,
     Inventory? inventory,
     Equipment? equipment,
-    SpellBook? spellBook,
+    SkillBook? skillBook,
     ProgressState? progress,
     QueueState? queue,
     SkillSystemState? skillSystem,
@@ -32,7 +32,7 @@ class GameState {
        stats = stats ?? Stats.empty(),
        inventory = inventory ?? Inventory.empty(),
        equipment = equipment ?? Equipment.empty(),
-       spellBook = spellBook ?? SpellBook.empty(),
+       skillBook = skillBook ?? SkillBook.empty(),
        progress = progress ?? ProgressState.empty(),
        queue = queue ?? QueueState.empty(),
        skillSystem = skillSystem ?? SkillSystemState.empty(),
@@ -44,7 +44,7 @@ class GameState {
     Stats? stats,
     Inventory? inventory,
     Equipment? equipment,
-    SpellBook? spellBook,
+    SkillBook? skillBook,
     ProgressState? progress,
     QueueState? queue,
     SkillSystemState? skillSystem,
@@ -57,7 +57,7 @@ class GameState {
       stats: stats,
       inventory: inventory,
       equipment: equipment,
-      spellBook: spellBook,
+      skillBook: skillBook,
       progress: progress,
       queue: queue,
       skillSystem: skillSystem,
@@ -71,7 +71,7 @@ class GameState {
   final Stats stats;
   final Inventory inventory;
   final Equipment equipment;
-  final SpellBook spellBook;
+  final SkillBook skillBook;
   final ProgressState progress;
   final QueueState queue;
 
@@ -93,7 +93,7 @@ class GameState {
     Stats? stats,
     Inventory? inventory,
     Equipment? equipment,
-    SpellBook? spellBook,
+    SkillBook? skillBook,
     ProgressState? progress,
     QueueState? queue,
     SkillSystemState? skillSystem,
@@ -107,7 +107,7 @@ class GameState {
       stats: stats ?? this.stats,
       inventory: inventory ?? this.inventory,
       equipment: equipment ?? this.equipment,
-      spellBook: spellBook ?? this.spellBook,
+      skillBook: skillBook ?? this.skillBook,
       progress: progress ?? this.progress,
       queue: queue ?? this.queue,
       skillSystem: skillSystem ?? this.skillSystem,
@@ -660,26 +660,26 @@ class Equipment {
   }
 }
 
-class SpellEntry {
-  const SpellEntry({required this.name, required this.rank});
+class SkillEntry {
+  const SkillEntry({required this.name, required this.rank});
 
   final String name;
   final String rank; // e.g., Roman numerals
 
-  SpellEntry copyWith({String? name, String? rank}) {
-    return SpellEntry(name: name ?? this.name, rank: rank ?? this.rank);
+  SkillEntry copyWith({String? name, String? rank}) {
+    return SkillEntry(name: name ?? this.name, rank: rank ?? this.rank);
   }
 }
 
-class SpellBook {
-  const SpellBook({required this.spells});
+class SkillBook {
+  const SkillBook({required this.skills});
 
-  final List<SpellEntry> spells;
+  final List<SkillEntry> skills;
 
-  factory SpellBook.empty() => const SpellBook(spells: []);
+  factory SkillBook.empty() => const SkillBook(skills: []);
 
-  SpellBook copyWith({List<SpellEntry>? spells}) {
-    return SpellBook(spells: spells ?? this.spells);
+  SkillBook copyWith({List<SkillEntry>? skills}) {
+    return SkillBook(skills: skills ?? this.skills);
   }
 }
 

lib/src/core/model/hall_of_fame.dart

@@ -21,7 +21,7 @@ class HallOfFameEntry {
     required this.clearedAt,
     this.finalStats,
     this.finalEquipment,
-    this.finalSpells,
+    this.finalSkills,
   });
 
   /// 고유 ID (UUID)
@@ -61,7 +61,7 @@ class HallOfFameEntry {
   final List<EquipmentItem>? finalEquipment;
 
   /// 최종 스펠북 (스펠 이름 + 랭크)
-  final List<Map<String, String>>? finalSpells;
+  final List<Map<String, String>>? finalSkills;
 
   /// 플레이 시간을 Duration으로 변환
   Duration get totalPlayTime => Duration(milliseconds: totalPlayTimeMs);
@@ -96,7 +96,7 @@ class HallOfFameEntry {
     DateTime? clearedAt,
     CombatStats? finalStats,
     List<EquipmentItem>? finalEquipment,
-    List<Map<String, String>>? finalSpells,
+    List<Map<String, String>>? finalSkills,
   }) {
     return HallOfFameEntry(
       id: id ?? this.id,
@@ -111,7 +111,7 @@ class HallOfFameEntry {
       clearedAt: clearedAt ?? this.clearedAt,
       finalStats: finalStats ?? this.finalStats,
       finalEquipment: finalEquipment ?? this.finalEquipment,
-      finalSpells: finalSpells ?? this.finalSpells,
+      finalSkills: finalSkills ?? this.finalSkills,
     );
   }
 
@@ -135,7 +135,7 @@ class HallOfFameEntry {
       clearedAt: DateTime.now(),
       finalStats: combatStats,
       finalEquipment: List<EquipmentItem>.from(state.equipment.items),
-      finalSpells: state.spellBook.spells
+      finalSkills: state.skillBook.skills
           .map((s) => {'name': s.name, 'rank': s.rank})
           .toList(),
     );
@@ -156,7 +156,7 @@ class HallOfFameEntry {
       'clearedAt': clearedAt.toIso8601String(),
       'finalStats': finalStats?.toJson(),
       'finalEquipment': finalEquipment?.map((e) => e.toJson()).toList(),
-      'finalSpells': finalSpells,
+      'finalSkills': finalSkills,
     };
   }
 
@@ -181,8 +181,8 @@ class HallOfFameEntry {
               .map((e) => EquipmentItem.fromJson(e as Map<String, dynamic>))
               .toList()
           : null,
-      finalSpells: json['finalSpells'] != null
-          ? (json['finalSpells'] as List<dynamic>)
+      finalSkills: json['finalSkills'] != null
+          ? (json['finalSkills'] as List<dynamic>)
               .map((s) => Map<String, String>.from(s as Map))
               .toList()
           : null,

lib/src/core/model/save_data.dart

@@ -13,7 +13,7 @@ class GameSave {
     required this.stats,
     required this.inventory,
     required this.equipment,
-    required this.spellBook,
+    required this.skillBook,
     required this.progress,
     required this.queue,
   });
@@ -26,7 +26,7 @@ class GameSave {
       stats: state.stats,
       inventory: state.inventory,
       equipment: state.equipment,
-      spellBook: state.spellBook,
+      skillBook: state.skillBook,
       progress: state.progress,
       queue: state.queue,
     );
@@ -38,7 +38,7 @@ class GameSave {
   final Stats stats;
   final Inventory inventory;
   final Equipment equipment;
-  final SpellBook spellBook;
+  final SkillBook skillBook;
   final ProgressState progress;
   final QueueState queue;
 
@@ -88,7 +88,7 @@ class GameSave {
         'sollerets': equipment.sollerets,
         'bestIndex': equipment.bestIndex,
       },
-      'spells': spellBook.spells
+      'skills': skillBook.skills
           .map((e) => {'name': e.name, 'rank': e.rank})
           .toList(),
       'progress': {
@@ -140,7 +140,7 @@ class GameSave {
     final equipmentJson = json['equipment'] as Map<String, dynamic>;
     final progressJson = json['progress'] as Map<String, dynamic>;
     final queueJson = (json['queue'] as List<dynamic>? ?? []).cast<dynamic>();
-    final spellsJson = (json['spells'] as List<dynamic>? ?? []).cast<dynamic>();
+    final skillsJson = (json['skills'] as List<dynamic>? ?? []).cast<dynamic>();
 
     return GameSave(
       version: json['version'] as int? ?? kSaveVersion,
@@ -192,10 +192,10 @@ class GameSave {
         sollerets: equipmentJson['sollerets'] as String? ?? '',
         bestIndex: equipmentJson['bestIndex'] as int? ?? 0,
       ),
-      spellBook: SpellBook(
-        spells: spellsJson
+      skillBook: SkillBook(
+        skills: skillsJson
             .map(
-              (e) => SpellEntry(
+              (e) => SkillEntry(
                 name: (e as Map<String, dynamic>)['name'] as String? ?? '',
                 rank: (e)['rank'] as String? ?? 'I',
               ),
@@ -261,7 +261,7 @@ class GameSave {
       stats: stats,
       inventory: inventory,
       equipment: equipment,
-      spellBook: spellBook,
+      skillBook: skillBook,
       progress: progress,
       queue: queue,
     );