Builds on twenty-ui's existing runtime axe gate by adding a static
enforcement layer and fixing accessibility gaps in shared components.
Color contrast is intentionally out of scope (still deferred via
`A11Y_DEFER_COLOR_CONTRAST`).
## What changed
- **Static guardrails:** enabled oxlint's `jsx-a11y` plugin
(keyboard-operability rules at `error`), and added a custom
`twenty/no-storybook-a11y-disable` rule that blocks `a11y: { test: 'off'
| 'todo' }` so the axe gate can't be silently disabled again.
- **Focus visibility:** wired the existing `focus-ring` mixin into all
buttons for real `:focus-visible` rings (was `outline: none`).
- **Decorative icons:** `aria-hidden` on icons inside labeled buttons
(added to `IconComponentProps` + render sites).
- **Inputs:** accessible-name support on `SearchInput` and `Checkbox`.
- **Interactive components:** `Tag` renders a real `<button>` when
clickable; the non-semantic clickable `div`s (`Avatar`, `Status`,
`ColorSchemeCard`, `NavigationBarItem`, etc.) are now keyboard-operable
via a shared `handleClickableElementKeyDown` helper, role and accessible
name.
## Notes for reviewers
- Two `oxlint-disable` lines remain on genuine non-interactive capture
wrappers (`CodeEditor`, `OverflowingTextWithTooltip`).
- 8 lint warnings remain by design: conditional-interactivity
`no-static-element-interactions` and legitimate `autoFocus` on
`SearchInput`.
- `NavigationBarItem` gained a required `ariaLabel`; its only consumer
(`MobileNavigationBar`) is updated with translated labels.
## Follow-ups (separate PRs)
- Enforced accessible names on icon-only buttons
(`IconButton`/`LightIconButton`) — breaking, ~128 call sites.
- `aria-activedescendant` wiring for the dropdown/listbox keyboard
layer.
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Raphaël Bosi
1f6c2b89fd
