feat(功能强化): 新增附件下载，优化附件展示与目录间距

assets/webui/index.html

@@ -118,6 +118,10 @@
 						<dd id="metaFonts">0</dd>
 					</div>
 				</dl>
+				<section id="attachmentPanel" class="attachment-panel" aria-labelledby="attachmentPanelTitle" hidden>
+					<div id="attachmentPanelTitle" class="panel-title">附件</div>
+					<div id="attachmentList" class="attachment-list"></div>
+				</section>
 				<section id="signaturePanel" class="signature-panel" aria-labelledby="signaturePanelTitle" hidden>
 					<div class="panel-row">
 						<div id="signaturePanelTitle" class="panel-title compact">签名</div>