feat(14.2.1-03): add markdown and multilingual cabana fields

Lift locale maps before ProjectWritableFields so a Journal-shaped save can persist the default host scalar and non-default locales through TranslationWriter without dropping nested JSON.

Co-authored-by: Cursor <cursoragent@cursor.com>

admin/tests/form/MLFields.test.ts

@@ -0,0 +1,95 @@
+import { afterEach, beforeEach, describe, expect, it } from 'vitest'
+import { enableAutoUnmount, mount } from '@vue/test-utils'
+import type { FormField } from '../../src/api/types'
+import MarkdownField from '../../src/components/form/fields/MarkdownField.vue'
+import MLMarkdownField from '../../src/components/form/fields/MLMarkdownField.vue'
+import MLTextField from '../../src/components/form/fields/MLTextField.vue'
+import { editablePayload } from '../../src/components/form/formState'
+import { isRegistered, rendererFor } from '../../src/components/form/registry'
+import { resetState } from '../helpers'
+
+function field(type: string, name = 'title'): FormField {
+  return { name, label: 'Title', type } as FormField
+}
+
+beforeEach(() => {
+  resetState()
+})
+
+afterEach(() => {
+  document.body.innerHTML = ''
+})
+
+enableAutoUnmount(afterEach)
+
+describe('ML field registry and nested save body', () => {
+  it('resolves markdown, mltext and mlmarkdown', () => {
+    expect(rendererFor('markdown')).toBe(MarkdownField)
+    expect(rendererFor('mltext')).toBe(MLTextField)
+    expect(rendererFor('mlmarkdown')).toBe(MLMarkdownField)
+    expect(isRegistered('markdown')).toBe(true)
+    expect(isRegistered('mltext')).toBe(true)
+    expect(isRegistered('mlmarkdown')).toBe(true)
+  })
+
+  it('sends every locale as a nested record', () => {
+    const fields = [field('mltext'), field('mlmarkdown', 'body')]
+    const payload = editablePayload(fields, {
+      title: { en: 'Hello', pl: 'Witaj' },
+      body: { en: '# Hi', pl: '# Cześć' },
+    })
+    expect(payload).toEqual({
+      title: { en: 'Hello', pl: 'Witaj' },
+      body: { en: '# Hi', pl: '# Cześć' },
+    })
+  })
+
+  it('edits the active locale and copies from another', async () => {
+    const wrapper = mount(MLTextField, {
+      props: {
+        field: field('mltext'),
+        modelValue: { en: 'Hello', pl: 'Witaj' },
+        controlId: 'f-title',
+      },
+      attachTo: document.body,
+    })
+    const input = wrapper.find('input')
+    expect(input.element.value).toBe('Hello')
+    await wrapper.find('[data-ml-locale]').setValue('pl')
+    expect(wrapper.find('input').element.value).toBe('Witaj')
+    await wrapper.find('[data-ml-copy-from]').setValue('en')
+    await wrapper.find('[data-ml-copy]').trigger('click')
+    expect(wrapper.emitted('update:modelValue')?.at(-1)).toEqual([{ en: 'Hello', pl: 'Hello' }])
+  })
+
+  it('switches every ML control from one selector', async () => {
+    const title = mount(MLTextField, {
+      props: { field: field('mltext'), modelValue: { en: 'Hello', pl: 'Witaj' }, controlId: 'f-title' },
+      attachTo: document.body,
+    })
+    const body = mount(MLMarkdownField, {
+      props: { field: field('mlmarkdown', 'body'), modelValue: { en: 'EN', pl: 'PL' }, controlId: 'f-body' },
+      attachTo: document.body,
+    })
+    expect(body.findComponent(MarkdownField).exists()).toBe(true)
+    await title.find('[data-ml-locale]').setValue('pl')
+    expect((body.find('[data-ml-locale]').element as HTMLSelectElement).value).toBe('pl')
+    expect(body.find('textarea').element.value).toBe('PL')
+  })
+
+  it('does not execute raw HTML in the markdown preview', async () => {
+    const wrapper = mount(MarkdownField, {
+      props: {
+        field: field('markdown', 'body'),
+        modelValue: '<script>window.__ml_xss = 1</script><img src=x onerror="window.__ml_xss = 1">',
+        controlId: 'f-body',
+      },
+      attachTo: document.body,
+    })
+    await wrapper.find('[data-markdown-preview]').trigger('click')
+    expect(wrapper.find('script').exists()).toBe(false)
+    expect(wrapper.find('img').exists()).toBe(false)
+    expect((window as unknown as { __ml_xss?: number }).__ml_xss).toBeUndefined()
+    expect(wrapper.find('[data-markdown-preview-pane]').text()).toContain('<script>')
+  })
+})