feat(IndexController): 修改了IndexController控制器中的index方法，优化了店铺获取逻辑，根据经纬度获取最近的店铺，并更新了相关API接口。

app/api/controller/IndexController.php

@@ -215,7 +215,7 @@ class IndexController extends BaseApiController
             // 计算距离的SQL表达式
             $distanceSql = "SQRT(POW(69.1 * (latitude - {$latitude}), 2) +
                 POW(69.1 * ({$longitude} - longitude) * COS(latitude / 57.3), 2))";
-            $find = SystemStore::field("id, name, {$distanceSql} AS distance")
+            $find = SystemStore::field("id, name,abbreviation, {$distanceSql} AS distance")
                 ->where('latitude', '<>', '')
                 ->where('longitude', '<>', '')
                 ->order('distance', 'asc') // 根据距离排序