refactor(animation): 애니메이션 시스템 정리

- AsciiCanvasPainter, CanvasBattleComposer 개선
- WeaponEffects 정리

lib/src/core/animation/canvas/ascii_canvas_painter.dart

@@ -161,7 +161,16 @@ class AsciiCanvasPainter extends CustomPainter {
         final y = gridY * cellHeight;
 
         // 레이어 투명도를 셀 렌더링에 전달
-        _drawCell(canvas, cell, x, y, cellWidth, cellHeight, fontSize, layer.opacity);
+        _drawCell(
+          canvas,
+          cell,
+          x,
+          y,
+          cellWidth,
+          cellHeight,
+          fontSize,
+          layer.opacity,
+        );
       }
     }
   }

lib/src/core/animation/canvas/canvas_battle_composer.dart

@@ -92,7 +92,8 @@ class CanvasBattleComposer {
 
     // 텍스트 이펙트 레이어 (Phase 10~11)
     // 크리티컬 텍스트 (상단 중앙)
-    if (isCritical && (phase == BattlePhase.attack || phase == BattlePhase.hit)) {
+    if (isCritical &&
+        (phase == BattlePhase.attack || phase == BattlePhase.hit)) {
       layers.add(_createCriticalTextLayer(subFrame));
     }
     // 회피 텍스트 (캐릭터 위)
@@ -410,7 +411,10 @@ class CanvasBattleComposer {
     final List<List<AsciiCell>> cells;
     if (attacker == AttackerType.player && weaponRarity != null) {
       // 무기 등급에 따른 이펙트 색상
-      cells = _spriteToCellsWithColor(effectLines, weaponRarity!.effectCellColor);
+      cells = _spriteToCellsWithColor(
+        effectLines,
+        weaponRarity!.effectCellColor,
+      );
     } else {
       // 기본 색상 (자동 색상 결정)
       cells = _spriteToCells(effectLines);
@@ -533,19 +537,16 @@ class CanvasBattleComposer {
       }).toList();
     }).toList();
 
-    return AsciiLayer(
+    return AsciiLayer(cells: cells, zIndex: 4, offsetX: offsetX, offsetY: 0);
-      cells: cells,
-      zIndex: 4,
-      offsetX: offsetX,
-      offsetY: 0,
-    );
   }
 
   /// 몬스터 공격 이펙트 (← 방향)
   List<String> _getMonsterAttackEffect(BattlePhase phase, int subFrame) {
     return switch (phase) {
-      BattlePhase.prepare => _monsterPrepareFrames[subFrame % _monsterPrepareFrames.length],
+      BattlePhase.prepare =>
-      BattlePhase.attack => _monsterAttackFrames[subFrame % _monsterAttackFrames.length],
+        _monsterPrepareFrames[subFrame % _monsterPrepareFrames.length],
+      BattlePhase.attack =>
+        _monsterAttackFrames[subFrame % _monsterAttackFrames.length],
       BattlePhase.hit => _monsterHitFrames[subFrame % _monsterHitFrames.length],
       _ => <String>[],
     };

lib/src/core/animation/weapon_effects.dart

@@ -104,7 +104,13 @@ const _projectileEffect = WeaponEffect(
     [r'          ', r'    .     ', r'    [>    ', r"    '     ", r'          '],
     [r'          ', r'      .   ', r'      [>  ', r"      '   ", r'          '],
     [r'          ', r'        . ', r'        [>', r"        ' ", r'          '],
-    [r'          ', r'          ', r'          [>', r'          ', r'          '],
+    [
+      r'          ',
+      r'          ',
+      r'          [>',
+      r'          ',
+      r'          ',
+    ],
   ],
   hitFrames: [
     [r' *CLANG!* ', r'       ***', r'        [>', r'       ***', r'          '],