fix: form 表单不支持field.xxx.xx格式的defaultValue配置 (#4965)

* fix: form 表单不支持field.xxx.xx格式的defaultValue配置

* chore: 修复代码规范问题

packages/@core/ui-kit/form-ui/src/use-form-context.ts

@@ -3,7 +3,7 @@ import type { FormActions, VbenFormProps } from './types';
 import { computed, type ComputedRef, unref, useSlots } from 'vue';
 
 import { createContext } from '@vben-core/shadcn-ui';
-import { isString } from '@vben-core/shared/utils';
+import { isString, set } from '@vben-core/shared/utils';
 
 import { useForm } from 'vee-validate';
 import { object, type ZodRawShape } from 'zod';
@@ -41,9 +41,9 @@ export function useFormInitial(
     const zodObject: ZodRawShape = {};
     (unref(props).schema || []).forEach((item) => {
       if (Reflect.has(item, 'defaultValue')) {
-        initialValues[item.fieldName] = item.defaultValue;
+        set(initialValues, item.fieldName, item.defaultValue);
       } else if (item.rules && !isString(item.rules)) {
-        zodObject[item.fieldName] = item.rules;
+        set(zodObject, item.fieldName, item.defaultValue);
       }
     });