refactor(@vben-core/form-ui): migrate to Zod 4 and TanStack Form (#8176)

* build(@vben-core/form-ui): update form validation dependencies

* refactor(@vben-core/form-ui): replace vee-validate with TanStack Form

* test(@vben-core/form-ui): cover TanStack Form migration

* docs(@vben/docs): document Zod 4 form migration

* refactor(project): update form adapters

* refactor(project): migrate application form consumers

* refactor(@vben/playground): migrate form examples

* docs(@vben/docs): fix validate return type and required rule empty check in form docs

* fix(@vben-core/form-ui): resolve oxlint and eslint errors

- rewrite nested ternary expressions as if/else in form-field-array.vue and form-runtime.ts
- sort @tanstack/vue-form before @vben-core/composables in package.json

* chore: fix merge artifacts and formatting

- move dependencies before devDependencies in root package.json
- update preferences snapshot for widget positioning fields
- format form-array demo README

* refactor(@vben-core/form-ui): optimize form runtime and value flow

- add fine-grained field selectors and atomic dependency resolution
- expose raw and formatted value snapshots with focused regression coverage

* fix(@vben/layouts): dispose sortable instance on unmount

* docs(@vben/docs): document form runtime API changes

- list added, changed, removed, and deprecated form APIs
- document atomic dependencies and raw versus formatted values

playground/src/views/examples/form/basic.vue

@@ -285,11 +285,16 @@ const [BaseForm, baseFormApi] = useVbenForm({
     },
     {
       component: 'DatePicker',
+      dependencies: {
+        resolve: ({ values }) => ({
+          help: () =>
+            [`这是一个可输出其他字段值的帮助信息${values.rate}`].map((value) =>
+              h('p', value),
+            ),
+        }),
+        triggerFields: ['rate'],
+      },
       fieldName: 'datePicker',
-      help: (values) =>
-        [`这是一个可输出其他字段值的帮助信息${values?.rate}`].map((v) =>
-          h('p', v),
-        ),
       label: '日期选择框',
     },
     {