style: dart format 적용

- 전체 Dart 소스 및 테스트 파일 포매팅 통일
- trailing comma, 줄바꿈, 인덴트 정리

lib/src/features/new_character/new_character_screen.dart

@@ -257,7 +257,11 @@ class _NewCharacterScreenState extends State<NewCharacterScreen> {
               mainAxisSize: MainAxisSize.min,
               children: [
                 if (!isPaidUser) ...[
-                  const Icon(Icons.play_circle, size: 14, color: RetroColors.gold),
+                  const Icon(
+                    Icons.play_circle,
+                    size: 14,
+                    color: RetroColors.gold,
+                  ),
                   const SizedBox(width: 4),
                 ],
                 Text(

lib/src/features/new_character/widgets/class_selection_section.dart

@@ -105,8 +105,9 @@ class _ClassInfo extends StatelessWidget {
     final percent = (passive.value * 100).round();
     return switch (passive.type) {
       ClassPassiveType.hpBonus => game_l10n.passiveHpBonus(percent),
-      ClassPassiveType.physicalDamageBonus =>
-        game_l10n.passivePhysicalBonus(percent),
+      ClassPassiveType.physicalDamageBonus => game_l10n.passivePhysicalBonus(
+        percent,
+      ),
       ClassPassiveType.defenseBonus => game_l10n.passiveDefenseBonus(percent),
       ClassPassiveType.magicDamageBonus => game_l10n.passiveMagicBonus(percent),
       ClassPassiveType.evasionBonus => game_l10n.passiveEvasionBonus(percent),

lib/src/features/new_character/widgets/stats_section.dart

@@ -62,9 +62,15 @@ class StatsSection extends StatelessWidget {
           // 스탯 그리드
           Row(
             children: [
-              Expanded(child: _StatTile(label: l10n.statStr, value: str)),
-              Expanded(child: _StatTile(label: l10n.statCon, value: con)),
-              Expanded(child: _StatTile(label: l10n.statDex, value: dex)),
+              Expanded(
+                child: _StatTile(label: l10n.statStr, value: str),
+              ),
+              Expanded(
+                child: _StatTile(label: l10n.statCon, value: con),
+              ),
+              Expanded(
+                child: _StatTile(label: l10n.statDex, value: dex),
+              ),
             ],
           ),
           const SizedBox(height: 8),
@@ -73,8 +79,12 @@ class StatsSection extends StatelessWidget {
               Expanded(
                 child: _StatTile(label: l10n.statInt, value: intelligence),
               ),
-              Expanded(child: _StatTile(label: l10n.statWis, value: wis)),
-              Expanded(child: _StatTile(label: l10n.statCha, value: cha)),
+              Expanded(
+                child: _StatTile(label: l10n.statWis, value: wis),
+              ),
+              Expanded(
+                child: _StatTile(label: l10n.statCha, value: cha),
+              ),
             ],
           ),
           const SizedBox(height: 12),
@@ -116,10 +126,7 @@ class StatsSection extends StatelessWidget {
           Row(
             mainAxisAlignment: MainAxisAlignment.center,
             children: [
-              _UndoButton(
-                canUndo: canUndo,
-                onPressed: onUndo,
-              ),
+              _UndoButton(canUndo: canUndo, onPressed: onUndo),
               const SizedBox(width: 16),
               _RollButton(
                 canRoll: canRoll,
@@ -222,11 +229,7 @@ class _UndoButton extends StatelessWidget {
           children: [
             // 무료 유저는 광고 아이콘 표시
             if (!isPaidUser && canUndo) ...[
-              const Icon(
-                Icons.play_circle,
-                size: 14,
-                color: RetroColors.gold,
-              ),
+              const Icon(Icons.play_circle, size: 14, color: RetroColors.gold),
               const SizedBox(width: 4),
             ],
             Icon(
@@ -240,7 +243,9 @@ class _UndoButton extends StatelessWidget {
               style: TextStyle(
                 fontFamily: 'PressStart2P',
                 fontSize: 11,
-                color: canUndo ? RetroColors.textLight : RetroColors.textDisabled,
+                color: canUndo
+                    ? RetroColors.textLight
+                    : RetroColors.textDisabled,
               ),
             ),
           ],