Transfer between provider folder and vault
One-shot import (provider folder → vault), export (vault → provider folder), or both. Direction both creates paired import/export links and defaults export to a CaseMark Output subfolder. Upserts links by (connection_id, direction, remote, vault_id): first call backfills, later calls move only new/changed files via the ledger. Poll GET /links/ → active_run for progress.
Authorizations
API key starting with sk_case_
Headers
Trusted server-to-server application-user assertion. Derive it from the authenticated application session, never browser input. Omit only for the legacy organization-scoped namespace.
^[A-Za-z0-9_-]{1,255}$Body
import, export, both Optional destination for direction both. Defaults to CaseMark Output under remote.
auto, full_reconcile 
