- Dashboard layout resolves tenanciesModuleByPort server-side (one
isTenanciesModuleEnabled call per port the user has access to) and
passes the map through AppShell → Sidebar. Atomic SSR — no
flicker of the nav entry in/out after hydration.
- Sidebar gains NavItemGated.requiresTenanciesModule. The Tenancies
entry (KeyRound icon, immediately below Berths) only renders when
the currently-active port has the flag flipped on. Per-port live
switch fires when the rep toggles ports without reload.
- /[portSlug]/tenancies + /[portSlug]/tenancies/[id] both call
isTenanciesModuleEnabled and notFound() when disabled — guards
against direct URL access even when the sidebar is hidden.
- API routes (/api/v1/tenancies, /[id], /berths/[id]/tenancies)
prepended with assertTenanciesModuleEnabled — matches design §
"All routes ... return 404 when off". NotFoundError maps to 404.
- Existing tenancy API tests get a makePortWithTenancies() helper
(calls enableTenanciesModule after makePort) so the gate is
satisfied. Affects 2 test files (16 tests retargeted).
Verified: tsc clean, 1493/1493 vitest.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Matt
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