## Changes
**Provisioning idempotent** (`aws-ses-register-domain.service.ts`)
- Each SES create call (`CreateConfigurationSet`, event destination,
contact list, tenant association) now swallow `AlreadyExistsException`
via `.send().catch()`.
- Retry after partial failure re-run every step, no blow up on "already
exists". Before: one existing resource kill whole provision.
**Workspace delete clean up cloud** (`workspace.service.ts`,
`emailing-domain-workspace-cleanup.job.ts`,
`emailing-domain.service.ts`)
- On workspace delete, fetch domain list first, pass domains to cleanup
job.
- Cleanup now loop `driver.cleanupDomain(domain)` per domain +
`deprovisionWorkspace`. Tear down SES identity/tenant/config-set, not
just delete DB rows.
- Before: DB rows gone, SES resources orphaned forever. Now: cloud match
DB.
**Inbound replay dedupe** (`ses-inbound-mail-handler.service.ts`)
- Use `snsMessageId` as job id. SNS deliver same message twice → second
is no-op. No duplicate inbound email import.
