OSS-first docs
These docs teach the open system first: contracts, generated surfaces, runtimes, governance, and incremental adoption. Studio shows up as the operating layer on top, not as the source of truth.
Transitions the review record to `changes-requested` with a structured list of `changeRequests` (field-scoped). Non-terminal: when the upstream subject is updated, the review system fires an internal `review.resubmit` event (not a public op) that returns the review to `pending`.
Per SEAMS §1.3 (S-11), emits exactly one `audit.event.append` with kind `review.changes-requested`.
Capability: `review.act`. Idempotency: required.