同步距离方法

lib/modules/agent/views/navigation_card.dart

@@ -2,6 +2,18 @@ import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import '../controllers/agent_controller.dart';
 
+String formatDistance(String distanceStr) {
+  final distance = double.tryParse(distanceStr);
+  if (distance == null) return distanceStr; // 如果无法解析，则返回原始字符串
+
+  if (distance >= 1000) {
+    final km = distance / 1000;
+    return '${km.toStringAsFixed(1)} 公里';
+  } else {
+    return '${distance.toStringAsFixed(0)} 米';
+  }
+}
+
 //导航卡片
 Widget navigationCard(
   BuildContext context, {