fix(nav): publish menu contrast, check-in toast and button layout

Use solid light plate + forced ink on 发布 items, notyf instead of alert,
and keep header check-in flex layout after success.

assets/js/header-userbox.js

@@ -17,12 +17,24 @@
   }
 
   function toast(msg, type) {
-    if (window.aksrt && typeof window.aksrt.toast === 'function') {
-      window.aksrt.toast(msg, type || 'info');
+    type = type || 'info';
+    // Site-wide notification widget (aksrt-runtime notyf).
+    if (window.aksrt && typeof window.aksrt.notyf === 'function') {
+      window.aksrt.notyf(msg, { type: type, duration: 2200 });
       return;
     }
-    // eslint-disable-next-line no-alert
-    window.alert(msg);
+    if (typeof window.aksrtToast === 'function') {
+      window.aksrtToast(msg, type);
+      return;
+    }
+    if (typeof window.AksrtToast === 'function') {
+      window.AksrtToast(msg, type);
+      return;
+    }
+    // Last resort: non-blocking console (never native alert for UX).
+    if (window.console && typeof window.console.log === 'function') {
+      window.console.log('[aksrt]', type, msg);
+    }
   }
 
   function openModal(id) {
@@ -91,7 +103,12 @@
           }
           toast((res.data && res.data.message) || '签到成功', 'success');
           btn.classList.add('is-done');
-          btn.innerHTML = '<i class="fas fa-calendar-check" aria-hidden="true"></i> 今日已签到';
+          btn.disabled = true;
+          btn.setAttribute('disabled', 'disabled');
+          // Keep existing structure so CSS layout (.but.block flex) is not lost.
+          btn.innerHTML =
+            '<i class="fas fa-calendar-check" aria-hidden="true"></i>' +
+            '<span>今日已签到</span>';
         })
         .catch(function () {
           toast('网络错误', 'danger');