refactor(audio): 오디오 서비스 정리 및 SFX 풀 개선

lib/src/core/audio/audio_service.dart

@@ -174,7 +174,8 @@ class AudioService {
         return;
       } catch (e) {
         debugPrint(
-            '[AudioService] BGM player attempt ${attempt + 1} failed: $e');
+          '[AudioService] BGM player attempt ${attempt + 1} failed: $e',
+        );
         _staticBgmPlayer = null;
         if (attempt == maxRetries - 1) {
           debugPrint('[AudioService] BGM disabled');
@@ -269,7 +270,9 @@ class AudioService {
       // "Loading interrupted"는 새 BGM 요청으로 인한 정상 중단
       if (errorStr.contains('Loading interrupted') ||
           errorStr.contains('abort')) {
-        debugPrint('[AudioService] BGM $name loading interrupted (new request)');
+        debugPrint(
+          '[AudioService] BGM $name loading interrupted (new request)',
+        );
         return; // 플레이어 재생성 불필요
       }
 

lib/src/core/audio/sfx_channel_pool.dart

@@ -12,11 +12,8 @@ import 'package:just_audio/just_audio.dart';
 ///
 /// 플레이어 인스턴스를 static으로 관리하여 핫 리로드에서도 안전합니다.
 class SfxChannelPool {
-  SfxChannelPool({
-    required this.name,
-    this.poolSize = 4,
-    double volume = 0.8,
-  }) : _volume = volume;
+  SfxChannelPool({required this.name, this.poolSize = 4, double volume = 0.8})
+    : _volume = volume;
 
   /// 채널명 (디버그용)
   final String name;
@@ -76,7 +73,8 @@ class SfxChannelPool {
       // 기존 플레이어가 있으면 재사용 (핫 리로드 대응)
       if (_staticPlayers[name]!.isNotEmpty) {
         debugPrint(
-            '[SfxChannelPool:$name] Reusing ${_staticPlayers[name]!.length} existing players');
+          '[SfxChannelPool:$name] Reusing ${_staticPlayers[name]!.length} existing players',
+        );
         _staticInitialized[name] = true;
         completer.complete();
         return;
@@ -96,9 +94,12 @@ class SfxChannelPool {
       if (successCount > 0) {
         _staticInitialized[name] = true;
         debugPrint(
-            '[SfxChannelPool:$name] Initialized with $successCount/$poolSize players');
+          '[SfxChannelPool:$name] Initialized with $successCount/$poolSize players',
+        );
       } else {
-        debugPrint('[SfxChannelPool:$name] All players failed - audio disabled');
+        debugPrint(
+          '[SfxChannelPool:$name] All players failed - audio disabled',
+        );
       }
 
       completer.complete();
@@ -140,7 +141,8 @@ class SfxChannelPool {
         return player;
       } catch (e) {
         debugPrint(
-            '[SfxChannelPool:$name] Player $index attempt ${attempt + 1} failed: $e');
+          '[SfxChannelPool:$name] Player $index attempt ${attempt + 1} failed: $e',
+        );
         if (attempt == maxRetries - 1) {
           return null;
         }