feat(widgets): plate moderator apply modal + JS submit

Replace bare apply link with modal form posting to forum moderator
REST; empty/admin states and modal CSS.

assets/js/widget-set.js

@@ -42,6 +42,9 @@
           tab_count: tabCount,
           style: style,
           paginate: paginate,
+          topics: tab.getAttribute('data-topics') || '',
+          limit_day: tab.getAttribute('data-limit-day') || '0',
+          pay_type: tab.getAttribute('data-pay-type') || '',
         });
         var url = rest + (rest.indexOf('?') > -1 ? '&' : '?') + qs.toString();
         panel.classList.add('is-ajax-loading');
@@ -379,6 +382,87 @@
     });
   }
 
+
+  function initModeratorApplyModal() {
+    document.addEventListener('click', function (e) {
+      var openBtn = e.target.closest('[data-aksrt-mod-apply-open]');
+      if (openBtn) {
+        e.preventDefault();
+        var id = openBtn.getAttribute('data-aksrt-mod-apply-open');
+        var modal = id ? document.getElementById(id) : null;
+        if (modal) {
+          modal.hidden = false;
+          document.body.classList.add('aksrt-mod-apply-open');
+        }
+        return;
+      }
+      var closeBtn = e.target.closest('[data-aksrt-mod-apply-close]');
+      if (closeBtn) {
+        var box = closeBtn.closest('.aksrt-mod-apply-modal');
+        if (box) {
+          box.hidden = true;
+          document.body.classList.remove('aksrt-mod-apply-open');
+        }
+      }
+    });
+
+    document.querySelectorAll('.js-aksrt-moderator-apply-form').forEach(function (form) {
+      if (form.dataset.aksrtModApplyBound === '1') return;
+      form.dataset.aksrtModApplyBound = '1';
+      form.addEventListener('submit', function (event) {
+        event.preventDefault();
+        var boardId = parseInt(form.getAttribute('data-board-id') || '0', 10);
+        var reasonField = form.querySelector('[name="reason"]');
+        var reason = reasonField ? reasonField.value.trim() : '';
+        var feedback = form.querySelector('.js-aksrt-action-feedback');
+        var submitButton = form.querySelector('button[type="submit"]');
+        if (!boardId || !reason) {
+          if (feedback) {
+            feedback.textContent = '请填写完整的申请理由。';
+            feedback.className = 'js-aksrt-action-feedback mb10 is-error';
+          }
+          return;
+        }
+        if (submitButton) submitButton.disabled = true;
+        if (feedback) {
+          feedback.textContent = '正在提交申请…';
+          feedback.className = 'js-aksrt-action-feedback mb10 is-loading';
+        }
+        var siteUrl = (window.aksrtData && aksrtData.siteUrl) ? String(aksrtData.siteUrl).replace(/\/+$/, '') : '';
+        var url = siteUrl + '/wp-json/aksrt/v1/forum/moderator/apply';
+        fetch(url, {
+          method: 'POST',
+          credentials: 'same-origin',
+          headers: {
+            'Content-Type': 'application/json',
+            Accept: 'application/json',
+            'X-WP-Nonce': (window.aksrtData && aksrtData.restNonce) || '',
+          },
+          body: JSON.stringify({ board_id: boardId, reason: reason }),
+        })
+          .then(function (r) { return r.json().then(function (j) { return { ok: r.ok, j: j }; }); })
+          .then(function (res) {
+            if (!res.ok || (res.j && res.j.success === false)) {
+              throw new Error((res.j && res.j.message) || '申请提交失败');
+            }
+            var msg = (res.j && (res.j.message || (res.j.data && res.j.data.message))) || '申请已提交';
+            if (feedback) {
+              feedback.textContent = msg;
+              feedback.className = 'js-aksrt-action-feedback mb10 is-success';
+            }
+            if (reasonField) reasonField.disabled = true;
+          })
+          .catch(function (err) {
+            if (feedback) {
+              feedback.textContent = (err && err.message) || '申请提交失败。';
+              feedback.className = 'js-aksrt-action-feedback mb10 is-error';
+            }
+            if (submitButton) submitButton.disabled = false;
+          });
+      });
+    });
+  }
+
   function initFloatingQRCodes() {
     var wrap = document.querySelector('.float-right');
     if (!wrap) return;
@@ -424,6 +508,7 @@
     initProductTabs();
     initMainPostsLazy();
     initFeatureIntro();
+    initModeratorApplyModal();
     initFloatingQRCodes();
   }