[Bccorb]

Closes #4.

Changes

@seamless-auth/messaging now depends on @seamless-auth/types (^0.33.0) and re-exports the shared definitions instead of declaring its own copies:

• MessagingChannel, DeliveryResult and SmsMessage in packages/core/src/types.ts
• SendOtpEmailInput, SendOtpSmsInput and SendMagicLinkEmailInput in packages/core/src/messages.ts
• AuthDeliveryInstruction is newly exported, so a transport author can type the payload the API returns in external delivery mode without a second import

All imports are import type, so the compiled JavaScript does not load @seamless-auth/types or Zod. The dependency is there for the published .d.ts files.

What stays local

Two shapes are not in the shared package yet, so they stay here:

• EmailMessage is the shared EmailMessage extended with headers, which landed here in feat(email): carry custom headers through to SES #14 after @seamless-auth/types published its copy. Dropping it would break the SES v2 header support.
• SendEnrollmentInviteEmailInput has no shared counterpart.

Once @seamless-auth/types carries both, these become plain re-exports.

EmailTransport, SmsTransport, the handler and override types, AuthMessagingService and the provider configs stay here as the issue describes, since they carry implementation rather than data.

Checks

npm run typecheck, npm run lint, npm run format:check and npm test (12 passing) all pass locally.