feat: 添加 PCascadeSelect 组件，更新相关配置和依赖

src/all-custom/all-custom.vue

@@ -3,6 +3,7 @@ import { FormKitNode } from '@formkit/core';
 import { text } from '@formkit/inputs';
 import Swal from 'sweetalert2';
 import dayjs from 'dayjs';
+import { arrayToTree } from 'utils4u/array';
 
 async function submit(formData: Record<string, any>, formNode: FormKitNode) {
   console.group('submit');
@@ -27,6 +28,44 @@ const K_OPTIONS = [
 const promiseOptions = new Promise<typeof K_OPTIONS>(resolve => {
   setTimeout(() => resolve(K_OPTIONS), 1000);
 });
+
+const K_FLAT_TREE = [
+  {
+    dictLabel: '北京市',
+    dictValue: '110000',
+    fullName: '北京市',
+    abbrName: '北京',
+    dictParent: '00',
+  },
+  {
+    dictLabel: '山西省',
+    dictValue: '140000',
+    fullName: '山西省',
+    abbrName: '山西',
+    dictParent: '00',
+  },
+  {
+    dictLabel: '太原市',
+    dictValue: '140100',
+    fullName: '山西省,太原市',
+    abbrName: '山西太原',
+    dictParent: '140000',
+  },
+  {
+    dictLabel: '大同市',
+    dictValue: '140200',
+    fullName: '山西省,大同市',
+    abbrName: '山西大同',
+    dictParent: '140000',
+  },
+]
+
+
+const promiseCascadeOptions = new Promise<typeof K_FLAT_TREE>((resolve) => {
+  setTimeout(() => {
+    resolve(arrayToTree(K_FLAT_TREE, { id: 'dictValue', parentId: 'dictParent', rootId: '00' }));
+  }, 1000);
+});
 /* const funcOptions = async () => {
   await new Promise(r => setTimeout(r, 1000))
   return K_OPTIONS;
@@ -99,6 +138,15 @@ const promiseOptions = new Promise<typeof K_OPTIONS>(resolve => {
         optionLabel="label"
         optionValue="value"
       />
+      <FormKit
+        type="PCascadeSelect"
+        name="PCascadeSelect"
+        label="级联选择框"
+        validation="required"
+        :options="promiseCascadeOptions"
+        optionLabel="dictLabel"
+        optionValue="dictValue"
+      />
       <FormKit
         type="PDatePicker"
         name="PDatePicker"