Independent adversarial audit verdict was NOT SAFE; fixed:
- P0-1 /auth/confirm no longer trusts the query `type` (pinned to
'email_change'); a public endpoint feeding an attacker-chosen OTP
type into verifyOtp was an unintended auth entrypoint.
- P0-2 email sync uses the verifyOtp response user, not a follow-up
getUser() that may not reflect the just-verified identity; /me now
reconciles space_members.email against the authoritative auth email
on load, so a missed sync self-heals (no permanent stale email).
- P1-1 requestEmailChange builds the confirm origin from
NEXT_PUBLIC_APP_URL only, never request headers (forged Host could
redirect the confirmation link / capture token_hash).
- P2-1 isSecretConfigField also catches password/token/private_key/
*_token/*_password so non-conventionally-named credentials can't be
stored in plaintext integrations.config.
521 tests; build clean.