feat: 教程中心页与三项目教程视频清单（8 支视频含分镜）

data/projects.ts

@@ -66,7 +66,9 @@ export const projects: Project[] = [
     tech: ['GoFrame v2', 'Vue 3 + Vben Admin', 'MySQL', 'Redis', 'asynq', 'VitePress'],
     status: '已发布',
     page: '/projects/xiu-dtu/',
-    sections: [],
+    sections: [
+      { text: '教程视频', link: '/projects/xiu-dtu/guide/tutorial' },
+    ],
   },
   {
     id: 'xiu-admin',
@@ -79,7 +81,9 @@ export const projects: Project[] = [
     tech: ['GoFrame v2', 'Vue 3 + Vben Admin', 'Ant Design Vue', 'asynq'],
     status: '已发布',
     page: '/projects/xiu-admin/',
-    sections: [],
+    sections: [
+      { text: '教程视频', link: '/projects/xiu-admin/guide/tutorial' },
+    ],
   },
 ]