Adds the breadcrumb anchoring the user across modes on the doc
workspace. Empty / hidden on routes that don't opt in.
Components
- shared/breadcrumb/AppBreadcrumb.vue: data-driven, accessible
(<nav aria-label>, <ol>, aria-current=page on the leaf).
Renders nothing when crumbs.length === 0.
- shared/breadcrumb/types.ts: Crumb = LinkCrumb | LeafCrumb
discriminated union.
- shared/breadcrumb/store.ts: Pinia store + useCrumbs(source)
composable that auto-clears on unmount. Accepts a static array
OR a reactive ref/computed so pages with async doc fetches can
rebuild crumbs as data lands.
- shared/breadcrumb/text.ts: truncate(text, max) helper.
Wiring
- App.vue main outlet now sits below <AppBreadcrumb>; the shell
reads from useBreadcrumbStore so pages don't need teleports.
- DocWorkspacePage provides Studio > <id-truncated> > <mode-label>;
once the doc is fetched (#216 / E4), the id placeholder will
swap for the truncated filename.
i18n
- breadcrumb.aria, breadcrumb.studio, breadcrumb.mode.{ask,inspect,
chunks} added in fr + en.
Tests
- shared/breadcrumb/text.test.ts: 5 cases on truncate.
- shared/breadcrumb/store.test.ts: store actions + useCrumbs reactive/
static seeding (the lifecycle-clear path is covered end-to-end by
the integration tests landing in #211 / #216 — the project doesn't
use @vue/test-utils so a unit test for onBeforeUnmount is overkill).
Refs #208
be51105aaa