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/api/internal/service/admin/rbac.go

@@ -25,6 +25,7 @@ const (
 	PermMembershipCodesRead  = "admin.membership.codes.read"
 	PermMembershipCodesWrite = "admin.membership.codes.write"
 	PermAskRead              = "admin.ask.read"
+	PermContentSafetyRead    = "admin.content_safety.read"
 )
 
 var knownPermissions = map[string]struct{}{
@@ -33,7 +34,7 @@ var knownPermissions = map[string]struct{}{
 	PermContentWrite: {}, PermRolesRead: {}, PermRolesWrite: {},
 	PermUsersStatusWrite: {}, PermMembershipPlansRead: {}, PermMembershipPlansWrite: {},
 	PermMembershipCodesRead: {}, PermMembershipCodesWrite: {},
-	PermAskRead: {},
+	PermAskRead: {}, PermContentSafetyRead: {},
 }
 
 var (