feat(form,form-schema): group list支持配置默认展开数量

packages/form-schema/src/base.ts

@@ -720,6 +720,12 @@ export interface GroupListConfig extends FormItem {
   title?: string | FilterFunction<string>;
   itemExtra?: string | FilterFunction<string>;
   expandAll?: boolean;
+  /**
+   * 默认展开的数量，用于控制分组列表默认展示的项数
+   * 当设置为数字时，表示默认展开指定数量的项
+   * 当未设置时，默认展开第一项
+   */
+  defaultExpandQuantity?: number;
   addable?: (mForm: FormState | undefined, data: any) => boolean | 'undefined' | boolean;
   defaultAdd?: (mForm: FormState | undefined, data: any) => any;
   delete?: (model: any, index: number | string | symbol, values: any) => boolean | boolean;

packages/form/src/containers/GroupListItem.vue

@@ -133,7 +133,9 @@ const props = defineProps<{
 const emit = defineEmits(['swap-item', 'remove-item', 'change', 'addDiffCount', 'copy-item']);
 
 const mForm = inject<FormState | undefined>('mForm');
-const expand = ref(props.config.expandAll || !props.index);
+
+const defaultExpandQuantity = props.config.defaultExpandQuantity ?? 7;
+const expand = ref(props.config.expandAll || defaultExpandQuantity > props.index);
 
 const rowConfig = computed(() => ({
   type: 'row',