fix(studio): 对渐变晶格的灰度图，添加了id字段

src/Studio/Resource/Workspace/Tasks/Detail/GradientLattice.php

@@ -61,6 +61,8 @@ class GradientLattice extends OrderDetail
             'wideLightest' => $this->when(isset($this->wideLightest), $this->wideLightest),
             'projection' => $this->projection,
             'grayscale' =>  [
+                // 如果是自己上传的，id 为 null
+                'id' => $this->grayscale?->id ?? null,
                 'nameZh' => $this->grayscale?->nameZh ?? pathinfo($this->grayscaleUrl)['basename'],
                 'nameEn' => $this->grayscale?->nameEn ?? pathinfo($this->grayscaleUrl)['basename'],
                 'pathPreview' => $this->grayscale?->pathPreview ?? $this->grayscaleUrl,