feat: 悬挂ICP备案号，修复验证码、500登录、/admin Failed to Fetch，优化首页编辑器100%全屏平铺

client/src/pages/IssueDetail.jsx

@@ -35,7 +35,7 @@ export default function IssueDetail() {
   const fetchIssue = async () => {
     try {
       const token = localStorage.getItem('token');
-      const res = await fetch(`http://localhost:3001/api/issues/${id}`, {
+      const res = await fetch(`/api/issues/${id}`, {
         headers: { Authorization: `Bearer ${token}` }
       });
       const data = await res.json();
@@ -56,7 +56,7 @@ export default function IssueDetail() {
     setReplyMsg('');
     try {
       const token = localStorage.getItem('token');
-      const res = await fetch(`http://localhost:3001/api/issues/${id}/reply`, {
+      const res = await fetch(`/api/issues/${id}/reply`, {
         method: 'POST',
         headers: {
           'Content-Type': 'application/json',