fix: login broken by sync/async mismatch, register missing home link, top bar contrast

public/js/app.js

@@ -89,7 +89,7 @@ const App = {
     const pub = document.getElementById('public-page');
     pub.classList.remove('hidden');
     const comp = page === 'login' ? LoginPage : page === 'register' ? RegisterPage : page === 'install' ? InstallPage : HomePage;
-    comp.render().then(html => { pub.innerHTML = html; if (comp.mount) comp.mount(); });
+    Promise.resolve(comp.render()).then(html => { pub.innerHTML = html; if (comp.mount) comp.mount(); });
   },
 
   showLayout() {

public/js/pages/register.js

@@ -27,7 +27,9 @@ const RegisterPage = {
           <button type="submit" class="btn btn-p btn-lg w-full"><i class="fas fa-user-plus"></i> 注册</button>
         </form>
         <div style="margin-top:14px;text-align:center;font-size:13px">
-          <a href="#/login" style="color:var(--p);text-decoration:none">已有账号？登录</a>
+          <a href="#/login" style="color:var(--p);text-decoration:none;font-weight:600">已有账号？登录</a>
+          <span style="color:var(--g4);margin:0 10px">|</span>
+          <a href="#/home" style="color:var(--g5);text-decoration:none">匿名提交</a>
         </div>
       </div>`;
   },