fix(ui): 사망 화면 장비 슬롯명 표시 및 기타 수정

- 사망 시 잃은 아이템에 슬롯명 표시 추가
- progress_service 마이너 수정
- 관련 테스트 업데이트

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

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:asciineverdie/data/game_text_l10n.dart' as l10n;
 import 'package:asciineverdie/src/core/l10n/game_data_l10n.dart';
 import 'package:asciineverdie/src/core/model/combat_event.dart';
+import 'package:asciineverdie/src/core/model/equipment_slot.dart';
 import 'package:asciineverdie/src/core/model/game_state.dart';
 import 'package:asciineverdie/src/shared/retro_colors.dart';
 
@@ -293,6 +294,11 @@ class DeathOverlay extends StatelessWidget {
     final expColor = RetroColors.expOf(context);
     final gold = RetroColors.goldOf(context);
 
+    // 슬롯명 + 아이템명 조합
+    final lostItemDisplay = hasLostItem
+        ? '[${_getSlotName(deathInfo.lostItemSlot)}] ${deathInfo.lostItemName}'
+        : null;
+
     return Column(
       children: [
         // 제물로 바친 아이템 표시
@@ -321,10 +327,10 @@ class DeathOverlay extends StatelessWidget {
                       ),
                       const SizedBox(height: 4),
                       Text(
-                        deathInfo.lostItemName!,
+                        lostItemDisplay!,
                         style: TextStyle(
                           fontFamily: 'PressStart2P',
-                          fontSize: 14,
+                          fontSize: 13,
                           color: hpColor,
                         ),
                       ),
@@ -671,4 +677,22 @@ class DeathOverlay extends StatelessWidget {
       ),
     };
   }
+
+  /// 장비 슬롯 이름 반환
+  String _getSlotName(EquipmentSlot? slot) {
+    if (slot == null) return '';
+    return switch (slot) {
+      EquipmentSlot.weapon => l10n.slotWeapon,
+      EquipmentSlot.shield => l10n.slotShield,
+      EquipmentSlot.helm => l10n.slotHelm,
+      EquipmentSlot.hauberk => l10n.slotHauberk,
+      EquipmentSlot.brassairts => l10n.slotBrassairts,
+      EquipmentSlot.vambraces => l10n.slotVambraces,
+      EquipmentSlot.gauntlets => l10n.slotGauntlets,
+      EquipmentSlot.gambeson => l10n.slotGambeson,
+      EquipmentSlot.cuisses => l10n.slotCuisses,
+      EquipmentSlot.greaves => l10n.slotGreaves,
+      EquipmentSlot.sollerets => l10n.slotSollerets,
+    };
+  }
 }