refactor: posts/show.html 内联 JS 拆分为独立文件

- 拆分 926 行内联 JS 为 5 个独立模块文件
- post-view.js: Vditor 渲染 + 提交审核按钮 (~50 行)
- post-energize.js: 赋能按钮 + 弹窗 (~76 行)
- post-reactions.js: 赞/踩系统 (~71 行)
- post-favorite.js: 收藏按钮 + 收藏夹弹窗 (~218 行)
- post-comments.js: 评论系统 (~456 行)
- show.html 从 1080 行缩减至 159 行

templates/MetaLab-2026/static/js/post-view.js

@@ -0,0 +1,48 @@
+// Vditor Markdown 渲染 + 外部链接处理 + 提交审核按钮
+(function() {
+    // ====== Vditor 渲染 ======
+    var el = document.getElementById('postContent');
+    var mdEl = document.getElementById('postMdContent');
+    if (el && mdEl) {
+        var md = mdEl.value;
+        Vditor.preview(el, md, {
+            cdn: '/static/vditor',
+            theme: { current: 'light', path: '/static/vditor/dist/css/content-theme' },
+            hljs: { style: 'github-dark', enable: true },
+            after: function() {
+                var host = window.location.host;
+                var links = el.querySelectorAll('a[href^="http"]');
+                for (var i = 0; i < links.length; i++) {
+                    var a = links[i];
+                    if (a.host && a.host !== host) {
+                        a.setAttribute('rel', 'nofollow noopener noreferrer');
+                        a.setAttribute('target', '_blank');
+                    }
+                }
+            }
+        });
+        // shortcode 占位 div 替换为对应卡片 UI
+        renderShortcodes(el);
+    }
+
+    // ====== 提交审核按钮 ======
+    var submitBtn = document.getElementById('submitAuditBtn');
+    if (submitBtn) {
+        submitBtn.addEventListener('click', function() {
+            if (!confirm('确认提交审核？审核通过后将公开发布。')) return;
+            fetch('/api/posts/' + submitBtn.dataset.id + '/submit', {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json',
+                    'X-CSRF-Token': getCSRFToken()
+                }
+            })
+            .then(function(r) { return r.json(); })
+            .then(function(d) {
+                if (d.success) { window.location.reload(); }
+                else { alert(d.message || '提交失败'); }
+            })
+            .catch(function() { alert('请求失败'); });
+        });
+    }
+})();