chore: prepare open source archive

config/site.ts.example

@@ -25,6 +25,11 @@ export const siteConfig = {
     { name: 'GitHub', icon: 'simple-icons:github', url: 'https://github.com/yourname', color: '#333333' },
   ],
 
+  // 项目仓库（首页公告中的反馈入口）
+  repository: {
+    issuesUrl: 'https://github.com/yourname/your-repository/issues',
+  },
+
   // 导航菜单
   navLinks: [
     { label: '博客', icon: 'mdi:post-outline', href: '/posts' },
@@ -39,15 +44,26 @@ export const siteConfig = {
   // 赞助
   sponsors: {
     qrcode: {
-      wechat: '/sponsors/qrcode/wechat.png',
+      // 收款码放在 public/sponsors/qrcode/，该目录默认不会提交到 Git
+      wechat: '',
     },
     list: [] as { name: string; date: string; amount: string; avatar?: string; text?: string }[],
   },
 
+  // 备案信息。留空时页脚不显示。
+  filing: {
+    icp: '',
+    publicSecurity: {
+      label: '公网安备',
+      code: '',
+    },
+  },
+
   // Giscus 评论配置
   giscus: {
     repo: 'owner/repo',
     repoId: '',
     category: 'Announcements',
     categoryId: '',
-  },}
+  },
+}