test(14.2.1-06): land remaining named tests and phase gate

WR-02 proofs and T-14.2.1-19..23 must fail the phase closed if hydration or child locale validation is removed.

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

admin/tests/form/MLFields.test.ts

@@ -61,6 +61,35 @@ describe('ML field registry and nested save body', () => {
     })
   })
 
+  it('sends every enabled locale including empty pl', () => {
+    const fields = [field('mltext'), field('mlmarkdown', 'body')]
+    const payload = editablePayload(fields, {
+      title: { en: 'Hello', pl: '' },
+      body: { en: '# Hi', pl: '' },
+    })
+    expect(payload).toEqual({
+      title: { en: 'Hello', pl: '' },
+      body: { en: '# Hi', pl: '' },
+    })
+  })
+
+  it('exposes one locale selector per ML field listing enabled locales', () => {
+    const title = mlMount(MLTextField, {
+      field: field('mltext'),
+      modelValue: { en: '', pl: '' },
+      controlId: 'f-title',
+    })
+    const body = mlMount(MLMarkdownField, {
+      field: field('mlmarkdown', 'body'),
+      modelValue: { en: '', pl: '' },
+      controlId: 'f-body',
+    })
+    expect(title.findAll('[data-ml-locale]')).toHaveLength(1)
+    expect(body.findAll('[data-ml-locale]')).toHaveLength(1)
+    expect(title.findAll('[data-ml-locale] option').map((node) => node.text())).toEqual(['en', 'pl'])
+    expect(body.findAll('[data-ml-locale] option').map((node) => node.text())).toEqual(['en', 'pl'])
+  })
+
   it('edits the active locale and copies from another', async () => {
     const wrapper = mlMount(MLTextField, {
       field: field('mltext'),