Applies the ADDED requirement from
openspec/changes/unify-auth-completion/specs/authentication-methods/
into openspec/specs/authentication-methods/spec.md:
- Single web auth completion chokepoint (completeAuth at
apps/journal/app/lib/auth/completion.server.ts) with five scenarios
covering passkey register/login finish, magic-link verify-code,
magic-link click-through, and returnTo sanitization.
Path in the synced requirement is .server.ts (the post-rename name),
not the .ts the delta originally captured.
Change moved to openspec/changes/archive/2026-05-08-unify-auth-completion/.
15/15 tasks complete.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>