Wave 2 of replacing the fixed-data mock adapter: the auth domain joins the live
list, so credentials, roles and tokens belong to the real user.
- session: validate a restored token through /auth/me instead of trusting
localStorage, clearing it on 401/403 but keeping it when the API is merely
unreachable; the route guard now uses the validated session
- login: report a 401 as invalid credentials rather than a generic failure, and
drop the 6-character client rule so the API owns the password policy
- register: raise the rule to the API's 8 characters, remove the
verification-code field (its button only counted down and the value was never
sent), and report a duplicate email (409) distinctly
- TopBar and the user profile render their session-dependent branch client-only:
validating the session before hydration made those localStorage-backed
branches report hydration mismatches the previous code did not
Verified against the running backend: wrong password rejected, real JWT issued,
/user reachable, a short password refused with no network call, duplicate email
reported, a tampered token cleared and bounced to sign-in, a stale token kept
when the API is down, and the fixed-data rollback still signs in with the
backend stopped.
Also re-cuts docs/TBD-migrate-wave.md: auth is done, and cart, orders,
shipments and invoices must move together, because the mock adapter keeps their
state in one shared object and a partial flip fails at checkout.
OpenSpec change: openspec/changes/replace-mock-api-wave-2