fix: processFieldName handles object fields ({name, multi_entity}) format

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/utils.ts

@@ -10,20 +10,22 @@ dayjs.extend(utc);
  * 处理字段名，去除类型后缀
  * 例如: "字段名_类型" -> "字段名"
  */
-export function processFieldName(field: string): string {
-  if (field.includes('_')) {
-    return field.split('_')[0]; // 只保留类型前面的字段名
+export function processFieldName(field: string | { name: string; [key: string]: unknown }): string {
+  const name = typeof field === 'string' ? field : (field?.name || '');
+  if (name.includes('_')) {
+    return name.split('_')[0]; // 只保留类型前面的字段名
   }
-  return field;
+  return name;
 }
 
 /**
  * 处理字段数组，去除类型后缀并去重
+ * 支持字符串和 {name, multi_entity} 对象格式
  */
-export function processFieldNames(fields: string[]): string[] {
+export function processFieldNames(fields: (string | { name: string; [key: string]: unknown })[]): string[] {
   // 处理字段，去掉类型后缀
-  const processedFields = fields.map(processFieldName);
-  
+  const processedFields = fields.map(processFieldName).filter(Boolean);
+
   // 去重并返回
   return [...new Set(processedFields)];
 }