[Aditya-myst]

What and why

Closes #17.

Adds focused Vitest and Testing Library coverage for the guest compose components:

• SendBar: blocked-submit accessibility and behavior, ready submit behavior, and the sending label.
• ConsentLine: accessible checkbox labelling and controlled toggling.
• CategoryPicker: category change reporting and accessible checked state.

Checks

• pnpm typecheck && pnpm lint && pnpm test && pnpm format:check passes

  • pnpm typecheck and pnpm lint pass.
  • pnpm --filter @boothwall/event-ui test passes: 32 files and 105 tests.
  • Prettier passes for all three changed files.
  • On Windows, the untouched repository-wide pnpm test fails in @boothwall/i18n generated-message path checks because of Windows path separators. Repository-wide pnpm format:check also reports untouched CRLF files.

• No TV app or packages/wall-ui change.

• Docs and screenshots are not applicable to this test-only change.

[ddedic]

hey, thanks a lot for this, first outside PR on the repo 🙌 tests look clean and cover everything from #17, ran them locally and all green. tiny optional thing: the consent test could match the actual label text instead of /./, but totally fine to leave it. merging, thanks again!