feat(forum): frontend 1:1 list/tabs/urls/enqueue

Wire Zibll-style board sort tabs, shared topic rows, page-template
URLs, forum asset enqueue on home/plate, home synthesis load-more,
and topic last_reply meta for last-reply ordering. No dual-read.

assets/js/forum-governance.js

@@ -1322,6 +1322,61 @@
         }
     }
 
+
+    function bindBoardSortTabs() {
+        var root = document.querySelector('.aksrt-forum-board[data-plate-id], .aksrt-forum-board[data-board-id]');
+        if (!root) return;
+        var list = root.querySelector('.js-aksrt-board-topic-list');
+        var tabs = root.querySelectorAll('.js-aksrt-board-sort-tab');
+        if (!list || !tabs.length) return;
+
+        var plateId = root.getAttribute('data-plate-id') || '';
+        var boardId = root.getAttribute('data-board-id') || '';
+        var nonce = root.getAttribute('data-nonce') || (window.aksrtForumGovernance && aksrtForumGovernance.publicNonce) || (window.aksrtData && aksrtData.nonce) || '';
+        var ajaxUrl = (window.aksrtForumGovernance && aksrtForumGovernance.ajaxUrl) || (window.aksrtData && aksrtData.ajaxUrl) || '';
+
+        function loadSort(sort, pushUrl) {
+            if (!ajaxUrl) return;
+            list.style.opacity = '0.55';
+            var fd = new FormData();
+            fd.append('action', 'aksrt_forum_board_topics');
+            fd.append('nonce', nonce);
+            fd.append('page', '1');
+            fd.append('orderby', sort);
+            if (plateId) fd.append('plate_id', plateId);
+            if (boardId) fd.append('board_id', boardId);
+
+            fetch(ajaxUrl, { method: 'POST', body: fd, credentials: 'same-origin' })
+                .then(function (r) { return r.json(); })
+                .then(function (res) {
+                    list.style.opacity = '1';
+                    if (!res || !res.success) return;
+                    list.innerHTML = res.data.html || '';
+                    root.setAttribute('data-active-sort', sort);
+                    tabs.forEach(function (t) {
+                        t.classList.toggle('is-active', (t.getAttribute('data-sort') || '') === sort);
+                    });
+                    if (pushUrl && window.history && history.replaceState) {
+                        try {
+                            var u = new URL(window.location.href);
+                            u.searchParams.set('forum_sort', sort);
+                            history.replaceState({}, '', u.toString());
+                        } catch (e) {}
+                    }
+                })
+                .catch(function () { list.style.opacity = '1'; });
+        }
+
+        tabs.forEach(function (tab) {
+            tab.addEventListener('click', function (e) {
+                e.preventDefault();
+                var sort = tab.getAttribute('data-sort') || 'date';
+                if (sort === (root.getAttribute('data-active-sort') || '')) return;
+                loadSort(sort, true);
+            });
+        });
+    }
+
     function boot() {
         var composeForm = document.querySelector('.js-aksrt-forum-compose-form');
         if (composeForm) {
@@ -1358,6 +1413,7 @@
         document.querySelectorAll('.js-aksrt-unlock-topic').forEach(bindUnlockButton);
         bindForumCommentEngine();
         bindForumHomeTabs();
+        bindBoardSortTabs();
         document.querySelectorAll('.js-aksrt-edit-plate').forEach(bindEditPlateButton);
         document.querySelectorAll('.js-aksrt-delete-plate').forEach(bindDeletePlateButton);
         var reportModal = document.querySelector('#aksrt-report-modal');