feat(电子公文): 支持标引解析与原文定位

assets/webui/index.html

@@ -704,6 +704,10 @@
 					<div class="panel-row"><div id="attachmentPanelTitle" class="panel-title compact">附件</div><div class="panel-actions"><button id="attachmentAdd" class="small-button" type="button" title="添加附件" aria-haspopup="dialog" aria-controls="attachmentDialog" hidden>添加</button></div></div>
 					<div id="attachmentList" class="attachment-list"></div>
 				</section>
+				<section id="structurePanel" class="structure-panel" aria-labelledby="structurePanelTitle" hidden>
+					<div class="panel-row"><div id="structurePanelTitle" class="panel-title compact">结构</div><span id="structureSummary" class="count-pill">0</span></div>
+					<div id="structureList" class="structure-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>