AuthModule implements the M1 core as one coherent unit:
Signup (#13): POST signup/verify-email/resend-verification with shared
Zod validation (field-level error details), double opt-in via hashed
single-use tokens (24h, superseding reissue), registration_mode
enforcement, and per-IP rate limits.
Sessions (#14): opaque 32-byte cookie tokens stored as SHA-256 row
ids, sliding 30-day expiry (refresh at most hourly), global AuthGuard
with @Public() opt-out attaching the user to every request, CSRF
origin check on mutating requests, per-account login backoff (5/15min,
reset on success), generic 401 for wrong-vs-unknown credentials,
logout with immediate invalidation, GET /auth/me.
Reset (#15): forgot-password without account enumeration, one-hour
single-use tokens, reset destroys all existing sessions.
A 14-case supertest e2e suite drives every flow against the test
database, reading verification/reset links from the mail outbox.
Closes#13Closes#14Closes#15
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
