…onfig

Functional Button coverage (polymorphism, click emission, disabled/loading
click-suppression, aria-busy/disabled, spinner, axe a11y) plus composeStories
fixtures. Config: define process.env.NODE_ENV for @testing-library/vue in the
browser, CI retry, drop the unusable @stories alias (tests use relative story
paths so validate-references resolves them). Removes the bootstrap smoke test.

…onents

Wave 1 — browser-mode (Chromium) functional coverage authored + self-verified
per component: actions (button-highlight, mini-button, copy-button,
segmented-button, icon-button), content (badge, card-box, card-pricing,
currency, avatar, tag, overline), feedback (message, empty-state,
status-indicator, skeleton, progress-bar, empty-results-block), inputs
(label, helper-text, chip), layout (divider), navigation (link), utils
(spinner). Each asserts rendering, emitted events with payloads,
disabled/loading suppression, ARIA, and axe a11y; composeStories where a
story exists. 419 tests green across 25 files. gitignore browser screenshots.

…ple components

Wave 2 — browser-mode functional coverage: inputs (input-text, input-number,
input-password, textarea, field-text, field-password, field-textarea,
checkbox, radio-button, switch, field-checkbox(-block), field-radio(-block),
field-switch(-block), box-grid-selection), data (code-block), navigation
(menu-item, breadcrumb-item), layout (sidebar + group/header/footer). Each
covers v-model round-trip, emitted events, disabled/readonly suppression,
ARIA, and axe; composeStories where a story exists.

…ay & recursive components

Wave 3 — browser-mode functional coverage for the hard components:
composition (item, table, paginator, flow, pick-list, log-view, toast,
select, multi-select, dropdown, tab-view, global-header, breadcrumb) and
overlays/recursive (dialog, drawer, panel, tooltip, navigation-menu) plus
calendar. Covers compound dot-notation, provide/inject shared state,
emitted events, v-model, open/close + Escape + focus-trap + Teleport for
overlays, nested-instance context for recursive menus, and axe a11y.
One breadcrumb overflow-select test is skipped with a documented reason.
Adds DOM globals (SVGElement, requestAnimationFrame, HTMLOptionElement) to
eslint config for the test files.

…ite conventions)

…apper (post-#715)

After dev's #715 merge, CopyButton wraps IconButton in a <span> carrying the
testid, so the testid element is the wrapper, not the <button>. Assert the
wrapper span contains the button instead of equaling it.

…ntined)

Root cause of the hang: all 16 tests PASS and the summary prints, but vitest-browser/Playwright does not close the browser afterwards — triggered by the overflow Dropdown (Teleport + usePlacement) rendered at the mobile viewport. It is a teardown/tooling issue in the shared Dropdown/overlay, not a test defect. Rewrite drops userEvent, closes the overflow, uses axe only on non-overflow trails, and documents the FiveItems nested-interactive a11y gap. File stays excluded in vitest.config until the component teardown is fixed.

Adds @storybook/experimental-addon-test (SB 8.6) + a storybook vitest project (.storybook/vitest.setup.ts, apps/storybook/vitest.config.ts) so every story runs as a real-browser (Playwright) test and surfaces in the Storybook Testing sidebar (green/red per story). Reuses the existing @vitest/browser setup and the main.js aliases. Local run: 291/292 story-tests pass; the 1 failure (NavigationMenu 'Accessibility' story play(): aria-expanded true vs expected false) is a pre-existing story/component finding the addon now surfaces, not addressed here.

Match @storybook/experimental-addon-test to storybook core (removes the version-mismatch warning that can blank the addon manager UI).