test(10-05): bring every SPA module, composable and component under Vitest

- 41 unit and component suites under admin/tests/{app,state,shell,list,form,relation,views,ui}
  covering states and a11y roles; every src module is imported by a test
- typed fixture helper assigns each JSON fixture to its generated OpenAPI type
- fix: iconFor ignores inherited object members such as "constructor"
- fix: field controls import ./control instead of the registry (import cycle
  left a renderer unregistered depending on module load order)
- fix: dropdown shows the placeholder for an unknown stored value next to an emptyOption
- fix: list announces a failed schema load even when the rows arrive after it
- tailwind no longer scans admin/tests; boardwalk/dist rebuilt

admin/tests/form/FormTabs.test.ts

@@ -0,0 +1,61 @@
+import { afterEach, beforeEach, describe, expect, it } from 'vitest'
+import { enableAutoUnmount, mount } from '@vue/test-utils'
+import FormTabs from '../../src/components/form/FormTabs.vue'
+import type { TabItem } from '../../src/components/form/formState'
+import { keydown, resetState } from '../helpers'
+
+const tabs: TabItem[] = [
+  { key: 'default', label: 'Podstawowe', errors: 0 },
+  { key: 'tab:Details', label: 'Details', errors: 2 },
+  { key: 'tab:Members', label: 'Members', errors: 1 },
+]
+
+function mountTabs(modelValue = 'default') {
+  return mount(FormTabs, { props: { tabs, modelValue, idPrefix: 'f' }, attachTo: document.body })
+}
+
+beforeEach(() => {
+  resetState()
+})
+
+afterEach(() => {
+  document.body.innerHTML = ''
+})
+
+enableAutoUnmount(afterEach)
+
+describe('form tabs', () => {
+  it('is a tablist of tabs with roving tabindex, aria-selected and aria-controls', () => {
+    const wrapper = mountTabs('tab:Details')
+    expect(wrapper.find('[role="tablist"]').exists()).toBe(true)
+    const items = wrapper.findAll('[role="tab"]')
+    expect(items.map((tab) => tab.attributes('aria-selected'))).toEqual(['false', 'true', 'false'])
+    expect(items.map((tab) => tab.attributes('tabindex'))).toEqual(['-1', '0', '-1'])
+    expect(items.map((tab) => tab.attributes('id'))).toEqual(['f-tab-0', 'f-tab-1', 'f-tab-2'])
+    expect(items.map((tab) => tab.attributes('aria-controls'))).toEqual(['f-panel-0', 'f-panel-1', 'f-panel-2'])
+  })
+
+  it('badges tabs with invalid fields with a plural label', () => {
+    const wrapper = mountTabs()
+    const badges = wrapper.findAll('[data-tab-errors]')
+    expect(badges.map((badge) => [badge.text(), badge.attributes('aria-label')])).toEqual([
+      ['2', '2 błędy'],
+      ['1', '1 błąd'],
+    ])
+  })
+
+  it('selects on click and moves with the arrow keys, wrapping and moving focus', async () => {
+    const wrapper = mountTabs()
+    await wrapper.findAll('[role="tab"]')[2]!.trigger('click')
+    expect(wrapper.emitted('update:modelValue')!.at(-1)).toEqual(['tab:Members'])
+
+    const first = wrapper.findAll('[role="tab"]')[0]!.element
+    expect(keydown(first, 'ArrowLeft').defaultPrevented).toBe(true)
+    expect(wrapper.emitted('update:modelValue')!.at(-1)).toEqual(['tab:Members'])
+    expect(document.activeElement?.id).toBe('f-tab-2')
+    keydown(first, 'ArrowRight')
+    expect(wrapper.emitted('update:modelValue')!.at(-1)).toEqual(['tab:Details'])
+    expect(document.activeElement?.id).toBe('f-tab-1')
+    expect(keydown(first, 'Enter').defaultPrevented).toBe(false)
+  })
+})