diff --git a/scripts/validate-changelog-filenames.mjs b/scripts/validate-changelog-filenames.mjs
index 3f70f7d..1d62a57 100644
--- a/scripts/validate-changelog-filenames.mjs
+++ b/scripts/validate-changelog-filenames.mjs
@@ -8,7 +8,7 @@ const CONTROLLED_ROOTS = new Map([
   ['changelogs-v2', '管理后台'],
   ['changelogs-v2-mp', '小程序端'],
 ]);
-const CHANGE_TYPES = new Set(['新增接口', '修改接口', '删除接口']);
+const CHANGE_TYPES = new Set(['新增接口', '修改接口', '删除接口', '修复', '前端缺陷', '前端优化', '前端修复']);
 const PATH_ALIAS_MANIFEST = 'changelog-path-aliases.json';
 
 function ruleError(code, path, message, expected) {
@@ -180,7 +180,7 @@ export function validateChangelogPath(inputPath, now = new Date()) {
       'E_CHANGE_TYPE',
       changelogPath,
       `变更类型为 ${actualType || '(缺失)'}`,
-      '新增接口 / 修改接口 / 删除接口',
+      [...CHANGE_TYPES].join(' / '),
     ));
   }
 
@@ -203,8 +203,8 @@ export function validateChangelogPath(inputPath, now = new Date()) {
   if (day !== expectedDate.day) {
     errors.push(ruleError('E_DAY', changelogPath, `日前缀为 ${day}`, expectedDate.day));
   }
-  if (!/^[1-9]\d*$/.test(issue)) {
-    errors.push(ruleError('E_ISSUE', changelogPath, `Issue 号为 ${issue || '(缺失)'}`, '不带 # 的十进制正整数'));
+  if (!/^[1-9]\d*[a-z]?$/.test(issue) && issue !== 'frontend') {
+    errors.push(ruleError('E_ISSUE', changelogPath, `Issue 号为 ${issue || '(缺失)'}`, '不带 # 的十进制正整数(可带一位小写字母后缀),或纯前端条目用 frontend'));
   }
   if (title.trim() === '') {
     errors.push(ruleError('E_TITLE', changelogPath, '业务标题为空', '非空业务标题'));
diff --git a/scripts/validate-changelog-frontmatter.mjs b/scripts/validate-changelog-frontmatter.mjs
index 7c03af2..63fe26b 100644
--- a/scripts/validate-changelog-frontmatter.mjs
+++ b/scripts/validate-changelog-frontmatter.mjs
@@ -19,10 +19,12 @@ const FRONTEND_STATUSES = new Set([
   'released',
   'verified',
 ]);
-const BACKEND_STATUSES = new Set(['pending', 'tested', 'deployed']);
+const BACKEND_STATUSES = new Set(['pending', 'tested', 'deployed', 'not_required']);
 const GATEWAY_STATUSES = new Set(['pending', 'verified', 'not_required']);
 const CONSUMERS = new Set(['admin', 'mp', 'internal', 'multiple']);
-const CHANGE_TYPES = new Set(['新增接口', '修改接口', '删除接口']);
+const CHANGE_TYPES = new Set(['新增接口', '修改接口', '删除接口', '修复', '前端缺陷', '前端优化', '前端修复']);
+// 接口契约类条目:后端必须已部署测试服并实测(E_BACKEND_PENDING 硬门禁)才允许发布
+const API_CHANGE_TYPES = new Set(['新增接口', '修改接口', '删除接口']);
 const REQUIRED_KEYS = [
   'schema',
   'ticket',
@@ -180,8 +182,11 @@ export function validateV2Document(file, text, { requireV2 = false } = {}) {
   if (!GATEWAY_STATUSES.has(metadata.gateway_status)) {
     errors.push(ruleError('E_GATEWAY_STATUS', file, `gateway_status 非法: ${metadata.gateway_status || '(空)'}`));
   }
-  if (metadata.backend_status !== 'deployed') {
-    errors.push(ruleError('E_BACKEND_PENDING', file, '发布的 changelog 必须是 backend_status=deployed'));
+  if (API_CHANGE_TYPES.has(metadata.change_type) && metadata.backend_status === 'not_required') {
+    errors.push(ruleError('E_BACKEND_STATUS', file, '接口类 changelog 不允许 backend_status=not_required'));
+  }
+  if (!['deployed', 'not_required'].includes(metadata.backend_status)) {
+    errors.push(ruleError('E_BACKEND_PENDING', file, '发布的 changelog 必须是 backend_status=deployed(未部署测试服并实测前禁止推送;纯前端条目用 not_required)'));
   }
   if (metadata.gateway_status === 'pending') {
     errors.push(ruleError('E_GATEWAY_PENDING', file, '发布的 changelog 不能保留 gateway_status=pending'));
@@ -200,15 +205,21 @@ export function validateV2Document(file, text, { requireV2 = false } = {}) {
   if (issue && metadata.ticket !== issue) {
     errors.push(ruleError('E_TICKET_MISMATCH', file, `ticket=${metadata.ticket} 与文件名 Issue=${issue} 不一致`));
   }
-  const filenameType = /-(新增接口|修改接口|删除接口)-(?:管理后台|小程序端)\.md$/.exec(filename)?.[1];
+  const filenameType = /-(新增接口|修改接口|删除接口|修复|前端缺陷|前端优化|前端修复)-(?:管理后台|小程序端)\.md$/.exec(filename)?.[1];
   if (filenameType && metadata.change_type !== filenameType) {
     errors.push(ruleError('E_TYPE_MISMATCH', file, `change_type=${metadata.change_type} 与文件名=${filenameType} 不一致`));
   }
-  if (/\{[^{}\n]+\}|\bTODO\b|待补充/i.test(body)) {
+  // 单花括号是 REST 路径参数惯例({orderId}),只拦真正的模板残留:双花括号、TODO、待补充
+  if (/\{\{[^{}\n]+\}\}|\bTODO\b|待补充/i.test(body)) {
     errors.push(ruleError('E_PLACEHOLDER', file, '正文仍有 TODO、待补充或模板占位符'));
   }
-  if (!body.includes('## 变更接口') || !body.includes('## 验证证据')) {
-    errors.push(ruleError('E_SECTIONS', file, '正文缺少“变更接口”或“验证证据”章节'));
+  // 接口类条目必须有接口清单章节与验证章节;修复/前端类条目结构自由,不强制
+  if (API_CHANGE_TYPES.has(metadata.change_type)) {
+    const hasApiSection = /^##[^\n]*(变更接口|变更清单|变更内容|接口详情|变更点|接口变化|行为变化)/m.test(body);
+    const hasEvidenceSection = /^##[^\n]*(验证|测试|复现|证据)/m.test(body);
+    if (!hasApiSection || !hasEvidenceSection) {
+      errors.push(ruleError('E_SECTIONS', file, '接口类正文缺少接口清单(变更接口/变更清单)或验证(验证证据/测试)章节'));
+    }
   }
   return errors;
 }