refactor(admin): consolidate duplicate configuration

Remove duplicate comment, captcha, filing, and website-security configuration paths.

Move front submission verification to the captcha scene matrix and retire obsolete admin routes and components.

assets/admin/src/schema/sections/global/common.js

@@ -4,7 +4,6 @@ export const commonSchema = {
   icon: 'fas fa-cog',
   description: '管理站点常用开关、懒加载与备案信息等基础配置。',
   defaults: {
-    comment_enabled: true,
     lazyload_enabled: true,
     lazyload_animation: 'blur',
     lazyload_placeholder: '',
@@ -18,17 +17,10 @@ export const commonSchema = {
     lazyload_other: true,
     lazyload_widget: true,
     icp_filing: '',
+    police_filing: '',
     footer_text: '',
   },
   groups: [
-    {
-      key: 'comment',
-      title: '评论功能',
-      icon: 'fas fa-comment',
-      fields: [
-        { key: 'comment_enabled', label: '开启评论', type: 'switch', default: true, help: '全局评论开关，关闭后所有文章不再显示评论区' },
-      ],
-    },
     {
       key: 'performance',
       title: '性能优化',
@@ -72,6 +64,7 @@ export const commonSchema = {
       icon: 'fas fa-shield-alt',
       fields: [
         { key: 'icp_filing', label: 'ICP 备案号', type: 'input', placeholder: '例如：京ICP备12345678号', help: '显示在页脚的备案信息' },
+        { key: 'police_filing', label: '公安备案号', type: 'input', placeholder: '例如：公网安备11000000000000号', help: '显示在页脚的备案信息' },
         { key: 'footer_text', label: '页脚附加文字', type: 'input', placeholder: '自定义页脚文字', help: '显示在版权信息下方' },
       ],
     },