login.vue is rewritten to consume useAuthStore.login()'s discriminated
union — no more direct apiClient calls or branching on raw API response
shapes. The page maps result.kind to UI/routing decisions only:
- mfa-required → swap to MfaChallengeCard with the typed payload
- authenticated → resolvePostLoginTarget() (?to= relative, else
auth.resolveLandingRoute())
- must-set-password → forward-compatible placeholder route
- failed → field-level errors + rate_limit message branch
resolveLandingRoute() now returns a string path instead of
RouteLocationRaw — the typed router accepts string-paths cleanly,
removes the cast at every call site, and lets useAuthStore.spec.ts +
guards.spec.ts assert the resolved path directly.
A13-3 minimum precaution lives in a new utility:
src/utils/postLoginRedirect.ts. The relative-only check
(`startsWith('/') && !startsWith('//')`) rejects absolute, protocol-
relative, javascript:, and data: schemes. Full domain validation lands
in WS-3 PR-B2b.
6 vitest specs in utils/__tests__/postLoginRedirect.spec.ts cover the
six rejection / passthrough scenarios.
Test count 192 → 198. Lint + typecheck clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bert.hausmans
38a94c78e9