feat(comments): AJAX fragment list/submit + load-more parity

Add REST comment/list + comment/submit HTML fragments, shared query
renderer for order/author/hottest, fix load-more policy and DOM
targets, and stop full-page scrapes for order/author/reload.

assets/js/comment-ajax.js

@@ -28,7 +28,7 @@
   if (!window.aksrtData) return;
 
   var COMMENT_SELECTOR = '.aksrt-comment, .comment';
-  var CONTENT_SELECTOR = '.aksrt-comment__text';
+  var CONTENT_SELECTOR = '.aksrt-comment__text, .comment-content';
 
   var REST_BASE = (aksrtData.siteUrl || '').replace(/\/$/, '') + '/wp-json/aksrt/v1';
   var REST_NONCE = aksrtData.restNonce || '';
@@ -174,7 +174,17 @@
             commentEl.style.maxHeight = '0';
             commentEl.style.overflow = 'hidden';
           });
-          setTimeout(function () { commentEl.remove(); }, 300);
+          setTimeout(function () {
+            commentEl.remove();
+            var countEl = document.querySelector('.comments-count');
+            if (countEl) {
+              var m = (countEl.textContent || '').match(/(\d+)/);
+              if (m) {
+                var n = Math.max(0, parseInt(m[1], 10) - 1);
+                countEl.textContent = (countEl.textContent || '').replace(m[1], String(n));
+              }
+            }
+          }, 300);
         } else {
           notify((result.data && result.data.message) || result.message || '删除失败', 'error');
         }
@@ -206,7 +216,7 @@
   }
 
   function syncPinnedBadge(commentEl, pinned) {
-    var header = commentEl.querySelector('.aksrt-comment__header');
+    var header = commentEl.querySelector('.aksrt-comment__header, .comment-header');
     if (!header) return;
     var badge = header.querySelector('.aksrt-comment__badge--pinned');
     if (pinned && !badge) {