SettingsShell's content column carried pb-24 md:pb-0 that double-counted the bottom-nav clearance AuthShell's <main> already reserves, stacking ~96 px of dead scroll below the last card on mobile. AdminShell still carried the pre-#154 min-h-[calc(100dvh-12rem)] column reserve on <main>, over-reserving on short sections at every breakpoint. Delete the redundant SettingsShell gutter, move AdminShell's floor off <main> onto its grid, and factor the budget-derived grid floor into one shared SUB_SHELL_GRID_FLOOR constant so the two shells can never drift. Extend the guard to /admin/* and measure against each element's content-box bottom so a redundant sub-shell pb-* now fails instead of inflating the allowed budget.
e2e/
End-to-end browser tests. Playwright 1.60 drives a production build of the app against a real PostgreSQL, with @axe-core/playwright for accessibility assertions. This is the heaviest test tier; CI runs it on every PR, and locally it is worth running when a change touches a UI flow.
Running
pnpm e2e
The Playwright config (../playwright.config.ts) builds the app (next build) and brings up Postgres before the specs run; setup/global-setup.ts seeds the auth + fixture state. The suite is not part of the fast local gate (typecheck / lint / test) — it surfaces at PR CI, so expect responsive/wizard/nav reworks to flag here first.
Layout
setup/—global-setup.ts(auth + DB seeding),test-helpers.ts(shared login + navigation helpers).utils/— fixtures such asmock-dashboard-snapshot.ts.*.spec.ts— one spec per flow: auth/login/redirect, dashboard, charts, the medication-wizard cadences (medications-wizard-*), insights generation + scroll restoration, doctor report, settings, mobile-viewport consistency, locale switch, accessibility (a11y.spec.ts), and thev1427-*regression set.
Convention
Assert against stable data-* attributes (data-slot, data-display-step, root display attrs), not viewport-dependent visible text. Responsive sm:hidden UI changes break getByText on desktop while the underlying element is still present — anchoring on data attributes keeps the specs stable across breakpoints. See ../CLAUDE.md.