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-energize.js

@@ -0,0 +1,76 @@
+// 赋能按钮 + 弹窗
+(function() {
+    var btn = document.getElementById('energizeBtn');
+    var overlay = document.getElementById('energizeOverlay');
+    var closeBtn = document.getElementById('energizeClose');
+    var capHint = document.getElementById('energizeCapHint');
+    var lightBtn = document.getElementById('energizeLight');
+    var heavyBtn = document.getElementById('energizeHeavy');
+    if (!btn || !overlay) return;
+
+    var postId = btn.dataset.id;
+
+    function showOverlay() {
+        overlay.style.display = 'flex';
+    }
+    function hideOverlay() {
+        overlay.style.display = 'none';
+        capHint.style.display = 'none';
+        lightBtn.disabled = false;
+        heavyBtn.disabled = false;
+    }
+
+    btn.addEventListener('click', function() {
+        fetch('/api/energy/info')
+            .then(function(r) { return r.json(); })
+            .then(function(d) {
+                if (d.success && d.data && d.data.daily_exp_cap_reached) {
+                    capHint.style.display = 'block';
+                }
+                showOverlay();
+            })
+            .catch(function() { showOverlay(); });
+    });
+
+    closeBtn.addEventListener('click', hideOverlay);
+    overlay.addEventListener('click', function(e) {
+        if (e.target === overlay) hideOverlay();
+    });
+
+    function doEnergize(amount) {
+        lightBtn.disabled = true;
+        heavyBtn.disabled = true;
+
+        fetch('/api/energy/energize', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+                'X-CSRF-Token': getCSRFToken()
+            },
+            body: JSON.stringify({ post_id: parseInt(postId), amount: amount })
+        })
+        .then(function(r) { return r.json(); })
+        .then(function(d) {
+            if (d.success) {
+                alert(d.data.message || '赋能成功！');
+                hideOverlay();
+            } else {
+                alert(d.message || '赋能失败');
+                lightBtn.disabled = false;
+                heavyBtn.disabled = false;
+            }
+        })
+        .catch(function() {
+            alert('请求失败');
+            lightBtn.disabled = false;
+            heavyBtn.disabled = false;
+        });
+    }
+
+    lightBtn.addEventListener('click', function() {
+        doEnergize(parseInt(lightBtn.dataset.amount));
+    });
+    heavyBtn.addEventListener('click', function() {
+        doEnergize(parseInt(heavyBtn.dataset.amount));
+    });
+})();