feat(14.2.1-03): document ML fields and regenerate admin artifacts

- Document markdown, mltext, and mlmarkdown plus TranslationWriter save semantics
- Extend the SPA registry tests and rebuild committed boardwalk dist

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

admin/tests/form/registry.test.ts

@@ -7,6 +7,9 @@ import SwitchField from '../../src/components/form/fields/SwitchField.vue'
 import TextField from '../../src/components/form/fields/TextField.vue'
 import TextareaField from '../../src/components/form/fields/TextareaField.vue'
 import PartialField from '../../src/components/form/fields/PartialField.vue'
+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 PasswordField from '../../src/components/form/fields/PasswordField.vue'
 import PermissionEditorField from '../../src/components/form/fields/PermissionEditorField.vue'
 import UnsupportedField from '../../src/components/form/fields/UnsupportedField.vue'
@@ -177,3 +180,34 @@ describe('Phase 12.1 field types (UI-SPEC S5 and S7)', () => {
     }
   })
 })
+
+describe('markdown and multilingual field types (Phase 14.2.1)', () => {
+  it('registers markdown, mltext and mlmarkdown as editable types with their own controls', () => {
+    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)
+    expect(needsRecord('markdown')).toBe(false)
+    expect(needsRecord('mltext')).toBe(false)
+    expect(needsRecord('mlmarkdown')).toBe(false)
+  })
+
+  it('labels markdown as an input and ML fields as groups', () => {
+    expect(ownsLabel('markdown')).toBe(false)
+    expect(ownsLabel('mltext')).toBe(false)
+    expect(ownsLabel('mlmarkdown')).toBe(false)
+    expect(groupLabelled('markdown')).toBe(false)
+    expect(groupLabelled('mltext')).toBe(true)
+    expect(groupLabelled('mlmarkdown')).toBe(true)
+  })
+
+  it.each(['mlunknown', 'MLTEXT', 'richtext', 'markdowneditor'])(
+    'falls back to UnsupportedField for unknown ML type %j',
+    (type) => {
+      expect(isRegistered(type)).toBe(false)
+      expect(rendererFor(type)).toBe(UnsupportedField)
+    },
+  )
+})