feat(comments): full 1:1 zibll comment kernel for posts, forum, shop

Extract shared comment helpers (content/item/form/geo/actions), port GIF
[g=] smilies + FixedInput/moveForm UX, wire close_comments/city/quick
settings, REST comment get, and align product review chrome with zibll.

assets/js/core/comments.js

@@ -206,11 +206,17 @@
 
       var formData = collectFormData();
       var restRoot = (window.aksrtData && aksrtData.siteUrl) ? String(aksrtData.siteUrl).replace(/\/$/, '') : '';
-      var restBase = (restRoot || '') + '/wp-json/aksrt/v1/comment/submit';
+      var editId = form.querySelector('[name="edit_comment_ID"]');
+      var isEdit = editId && parseInt(editId.value, 10) > 0;
+      var restBase = (restRoot || '') + '/wp-json/aksrt/v1/comment/' + (isEdit ? 'edit' : 'submit');
 
       // Try REST endpoint for local-insert HTML response
       var restBody = {};
       formData.forEach(function (v, k) { restBody[k] = v; });
+      if (isEdit) {
+        restBody.comment_id = parseInt(editId.value, 10);
+        restBody.content = restBody.comment || restBody.content || '';
+      }
 
       fetch(restBase, {
         method: 'POST',
@@ -223,6 +229,21 @@
       })
         .then(function (r) { return r.json(); })
         .then(function (json) {
+          if (isEdit && json && json.success) {
+            var cid = restBody.comment_id;
+            var contentEl = document.querySelector('#comment-content-' + cid + ', [data-comment-id="' + cid + '"] .comment-content');
+            var rendered = (json.data && json.data.content) || json.content || '';
+            if (contentEl && rendered) contentEl.innerHTML = rendered;
+            var textarea = form.querySelector('#comment');
+            if (textarea) textarea.value = '';
+            if (editId) editId.remove();
+            restoreRespondPosition();
+            setLoading(false);
+            showToast(json.message || '评论已更新', 'success');
+            var respondEl = document.getElementById('respond');
+            if (respondEl && window.AksrtFixedInput) window.AksrtFixedInput(respondEl, 'hide');
+            return;
+          }
           if (json && json.success && json.html) {
             // Local insert: prepend new comment HTML
             localInsertComment(json.html, json.is_reply, json.parent_id, json.needs_moderation);
@@ -252,6 +273,18 @@
             // Move respond back to original position
             restoreRespondPosition();
 
+            // Hide mobile FixedInput after successful submit.
+            var respondEl = document.getElementById('respond');
+            if (respondEl && window.AksrtFixedInput) {
+              window.AksrtFixedInput(respondEl, 'hide');
+            } else if (respondEl) {
+              respondEl.classList.remove('show');
+            }
+
+            // If editing via moveForm, clear edit field.
+            var editField = form.querySelector('[name="edit_comment_ID"]');
+            if (editField) editField.remove();
+
             return;
           }