components/MobileNavigation.js has accepted a `user` prop ever since
the mobile bottom-bar was extracted from Layout, but it has never read
any field of `user`. The bottom-bar items (Cards, Decks, Dashboard,
Community, More) are statically configured — none of them branch on
auth state, role, user id, or any other per-user attribute. The prop
is dead.
This was originally surfaced as R8 in the fix-layout-default-user
convoy (commit ca302a8) and deliberately deferred there to keep that
convoy focused on the Layout default-user fix. The follow-up was
queued as cleanup-mobile-nav-dead-props in .convoys/ship-readiness.md
§ Queued convoys. Pre-edit audit confirms the queue entry's premise:
`rg '\\buser\\b' components/MobileNavigation.js` returns 1 hit (the
destructure on line 5) before the change and 0 hits after. The
only active call site is components/Layout.js line 598; the
components/Layout.js.backup snapshot also calls it but is a
no-go-zone (per .cursor/rules/no-go-zones.mdc § "Append-only /
historical") and stays untouched — when that backup is eventually
deleted in a separate convoy, its stale call disappears with it.
Verification: npm run lint exit 1 with 128 problems (baseline
preserved, no regression introduced); npm run test:run 21/21 pass
(test/components/Layout.test.js still asserts the logged-out branch
contract from PR #15 — the dead-prop removal is invisible to that
suite since it does not inspect MobileNavigation's prop shape).
Convoy file .convoys/cleanup-mobile-nav-dead-props.md captures the
audit, fix, risks (R1: a future per-user bottom-bar feature would
need to re-add the prop — accepted; carrying dead state to hedge
hypothetical features is worse than paying the one-line re-add cost
when the feature actually lands), and acceptance criteria.
Co-authored-by: Cursor <cursoragent@cursor.com>
