Distribute to KDP, IngramSpark, Apple, Kobo

Publish → Distribution channels. Each row is one (channel, format) pair. Press Submit — Turtini either ships the manuscript via API (Draft2Digital when D2D_API_KEY is set, IngramSpark over SFTP when those secrets are set) or queues an upload-ready bundle (EPUB + cover + ONIX 3.0 metadata) for channels with no public ingest (KDP, Apple Books, Kobo, Google Play). The row tracks status, your ASIN/SKU, and the public retail URL once live.