feat: align frontend document and rule management flows

app/routes/documents.edit.tsx

@@ -517,6 +517,12 @@ export default function DocumentEdit() {
                 <i className="ri-file-list-line"></i>
                 <span>{getDocumentTypeName(documentData.type)}</span>
               </div>
+              {documentData.groupName && (
+                <div className="meta-item">
+                  <i className="ri-git-merge-line"></i>
+                  <span>子类型：{documentData.groupName}</span>
+                </div>
+              )}
               <div className="meta-item">
                 <i className="ri-time-line"></i>
                 <span>{documentData.uploadTime}</span>
@@ -568,6 +574,20 @@ export default function DocumentEdit() {
               />
               <div className="text-sm text-secondary mt-1">如无编号可留空</div>
             </div>
+
+            {documentData.groupName && (
+              <div className="form-group">
+                <label className="form-label">子类型</label>
+                <input
+                  type="text"
+                  className="form-input"
+                  value={documentData.groupName}
+                  disabled
+                  readOnly
+                />
+                <div className="text-sm text-secondary mt-1">子类型由上传时命中的二级分组决定，当前页面仅展示不可修改。</div>
+              </div>
+            )}
             
             <div className="form-group">
               <label htmlFor="audit-status" className="form-label">审核状态 <span className="text-red-500">*</span></label>