fix: OptimizedShaderGeneratorの正規表現パターンを更新

- _BASE_MAP_TRI_TONE_ENABLEDを新しいキーワードに変更
- _BASE_MAP_TONE_MODE_TRITONE/_BASE_MAP_TONE_MODE_PENTONEに対応
- 最適化シェーダー生成時に新しいキーワードが正しく処理される

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: Tatami

Assets/Nova/Editor/Core/Scripts/Optimizer/OptimizedShaderGenerator.cs

@@ -287,7 +287,8 @@ private static string OptimizeShaderPass(string shaderCode, string passName,
             @"_BASE_MAP_MODE_3D\b|" +
             @"_BASE_MAP_ROTATION_ENABLED\b|" +
             @"_BASE_MAP_CHANNEL_ENABLED\b|" +
-            @"_BASE_MAP_TRI_TONE_ENABLED\b|" +
+            @"_BASE_MAP_TONE_MODE_TRITONE\b|" +
+            @"_BASE_MAP_TONE_MODE_PENTONE\b|" +
             @"_BASE_SAMPLER_STATE_POINT_MIRROR\b|" +
             @"_BASE_SAMPLER_STATE_LINEAR_MIRROR\b|" +
             @"_BASE_SAMPLER_STATE_TRILINEAR_MIRROR\b|" +