Phase 0 baselines

Re-capture these after meaningful UI changes; compare to this checkpoint.

How to record

From repo root:

cd ui
npm ci
npm run build
npm run size

Playwright (when backend available):

cd ui
npx playwright test --grep @a11y

Storybook:

cd ui
npm run build-storybook
# a11y addon runs in dev: npm run storybook

Size limits (package.json size-limit)

Budget	Path pattern	Limit
shell + home	dist/assets/index-*.js	850 kB gzip
studio chunk	dist/assets/StudioWorkspaceView-*.js	120 kB
studio mobile	dist/assets/StudioMobileView-*.js	5 kB

Import boundary baseline

Run:

cd ui
`npm run lint:import-boundary` (uses `@alexbayerl/djed-dev-tools` import-boundary-scan)

Target after Phase D2: zero violations outside the allowed primitive re-export seam.

Automated a11y

• Playwright: @axe-core/playwright on primary routes (see tests/e2e or playwright config).
• Storybook: @storybook/addon-a11y (axe-based).

Not sufficient alone for B2+C, E3, F5: manual keyboard-only smoke + one screen-reader pass per the refresh plan.