feat(game): 게임 클리어 시 VictoryOverlay 추가

- VictoryOverlay 위젯 신규 생성
- GameSessionController에 isComplete 상태 추가
- 레벨 100 도달 시 승리 오버레이 표시
- 승리 후 명예의 전당 화면으로 이동

lib/src/features/game/game_session_controller.dart

@@ -4,6 +4,7 @@ import 'package:asciineverdie/src/core/engine/progress_loop.dart';
 import 'package:asciineverdie/src/core/engine/progress_service.dart';
 import 'package:asciineverdie/src/core/engine/resurrection_service.dart';
 import 'package:asciineverdie/src/core/engine/shop_service.dart';
+import 'package:asciineverdie/src/core/model/combat_stats.dart';
 import 'package:asciineverdie/src/core/model/game_state.dart';
 import 'package:asciineverdie/src/core/model/game_statistics.dart';
 import 'package:asciineverdie/src/core/model/hall_of_fame.dart';
@@ -285,18 +286,40 @@ class GameSessionController extends ChangeNotifier {
 
   /// 명예의 전당 등록
   Future<void> _registerToHallOfFame() async {
-    if (_state == null) return;
+    if (_state == null) {
+      debugPrint('[HallOfFame] _state is null, skipping registration');
+      return;
+    }
 
-    final entry = HallOfFameEntry.fromGameState(
-      state: _state!,
-      totalDeaths: _sessionStats.deathCount,
-      monstersKilled: _state!.progress.monstersKilled,
-    );
+    try {
+      debugPrint('[HallOfFame] Starting registration...');
 
-    await _hallOfFameStorage.addEntry(entry);
+      // 최종 전투 스탯 계산 (CombatStats)
+      final combatStats = CombatStats.fromStats(
+        stats: _state!.stats,
+        equipment: _state!.equipment,
+        level: _state!.traits.level,
+      );
 
-    // 통계 기록
-    await _statisticsStorage.recordGameComplete();
+      final entry = HallOfFameEntry.fromGameState(
+        state: _state!,
+        totalDeaths: _sessionStats.deathCount,
+        monstersKilled: _state!.progress.monstersKilled,
+        combatStats: combatStats,
+      );
+
+      debugPrint('[HallOfFame] Entry created: ${entry.characterName} Lv.${entry.level}');
+
+      final success = await _hallOfFameStorage.addEntry(entry);
+      debugPrint('[HallOfFame] Storage save result: $success');
+
+      // 통계 기록
+      await _statisticsStorage.recordGameComplete();
+      debugPrint('[HallOfFame] Registration complete');
+    } catch (e, st) {
+      debugPrint('[HallOfFame] ERROR: $e');
+      debugPrint('[HallOfFame] StackTrace: $st');
+    }
   }
 
   /// 플레이어 부활 처리 (상태만 업데이트, 게임 재개는 별도로)