New GET /api/orgboard/products/{id}/export streams a zip of the product's
delivered work: PRODUCT.md (identity), each team's artifacts written as real
source files when the artifact is a single fenced code block (App.tsx,
schema.sql, …) or markdown otherwise, plus a README manifest. Gated on
board-view permission. The Delivery dashboard gets a Download project button
that fetches the file with the auth header and saves it.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>