fix: 视频描述字段长度校验

app/admin/validate/v1/VideoValidate.php

@@ -18,7 +18,7 @@ class VideoValidate extends Validate
         'language_id'  => 'require|integer',
         'category_id'  => 'require|integer',
         'name'         => 'require|max:64',
-        'desc'         => 'max:255',
+        'desc'         => 'max:512',
         'image'        => 'max:125',
         'video'        => 'max:125',
         'link'         => 'url|max:125',
@@ -44,7 +44,7 @@ class VideoValidate extends Validate
         'category_id.integer' => '分类参数类型错误',
         'name.require'        => '名称不能为空',
         'name.max'            => '名称不能超过64个字符',
-        'desc.max'            => '描述不能超过255个字符',
+        'desc.max'            => '描述不能超过512个字符',
         'image.max'           => '图片不能超过125个字符',
         'video.max'           => '视频不能超过125个字符',
         'link.url'            => '链接格式错误',