fix: 修复管理后台样式丢失 + CSP inline style 违规

- 评论管理页：创建 comments.css，controller 传递 ExtraCSS/ExtraJS，模板移除所有 inline style，JS 改用 CSS 类
- 修复 comments.js 加载顺序：通过 ExtraJS 在 common.js 之后加载，解决 api is not defined
- base.html：SVG inline style 移至 common.css
- dashboard/index.html：3 处 inline style 替换为 CSS 类
- audit/index.html：modal 移除冗余 style="display:none"
- fund_logs/logs：label inline style 移至 energy.css
- common.css 新增多个 CSS 规则
- energy.css 新增 .filter-bar label 规则

templates/admin/html/comments/index.html

@@ -7,19 +7,19 @@
 <div class="admin-toolbar">
     <input type="text" id="commentSearch" class="admin-search-input" placeholder="搜索评论内容、作者或文章标题..." />
     <button id="commentSearchBtn" class="btn btn-secondary">搜索</button>
-    <button id="commentClearBtn" class="btn btn-secondary" style="display:none">清除</button>
+    <button id="commentClearBtn" class="btn btn-secondary admin-hidden">清除</button>
 </div>
 
 <div class="admin-table-wrap" id="commentTableWrap">
     <table class="admin-table">
         <thead>
             <tr>
-                <th style="width:60px">ID</th>
-                <th style="width:100px">作者</th>
+                <th class="th-id">ID</th>
+                <th class="th-author">作者</th>
                 <th>评论内容</th>
-                <th style="width:160px">所属文章</th>
-                <th style="width:140px">时间</th>
-                <th style="width:100px">操作</th>
+                <th class="th-post">所属文章</th>
+                <th class="th-time">时间</th>
+                <th class="th-actions">操作</th>
             </tr>
         </thead>
         <tbody id="commentTableBody"></tbody>
@@ -27,7 +27,6 @@
 </div>
 
 <div class="admin-pagination" id="commentPagination"></div>
-<div class="admin-loading" id="commentLoading" style="display:none">加载中...</div>
+<div class="admin-loading admin-hidden" id="commentLoading">加载中...</div>
 
 {{template "admin/layout/footer.html" .}}
-<script src="/admin/static/js/comments.js?v={{assetV "/admin/static/js/comments.js"}}" nonce="{{.CSPNonce}}"></script>