feat(ECR-019): ContentSafety FilterRule 只读并 Closed

新增 filter_rules、admin.content_safety.read、列表/详情/试匹配 API 与 admin-h5「安全」页；禁审核写/UGC/真支付。

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/admin-h5/src/router/index.ts

@@ -18,6 +18,7 @@ const router = createRouter({
         { path: 'plans', name: 'plans', component: () => import('@/pages/MembershipPlansPage.vue') },
         { path: 'codes', name: 'codes', component: () => import('@/pages/RedemptionPage.vue') },
         { path: 'ask', name: 'ask', component: () => import('@/pages/AskPage.vue') },
+        { path: 'safety', name: 'safety', component: () => import('@/pages/SafetyPage.vue') },
         { path: 'audit', name: 'audit', component: () => import('@/pages/AuditPage.vue') },
       ],
     },