Preview a non-executing External Source Scaffold completion-audit suite

Compiles a non-executing owner-gated completion-audit suite from release-outcome-ledger packets or nested release-outcome-ledger inputs plus owner-supplied artifact inventory, validation bundle, docs sync, OpenAPI/API reference sync, authority boundary, owner completion review, remaining live activation blocker, and rollback/continuation refs. The response exposes per-workstream completion audit checklists, blockers, expected artifacts, release-outcome-ledger status, and next actions while keeping completion audit write by helper, owner completion approval by helper, program completion by helper, production launch, scaffold mutation, validation execution by helper, docs/API/OpenAPI mutation, ledger write by helper, archive publication by helper, production release, production smoke execution, and public discovery mutation disabled. This preview writes no records and cannot execute implementation, run validation, run production smoke, launch production, publish public discovery, mutate routes, mutate Seller OS, mutate trust/ranking, activate or mutate x402, move wallets, settle, dispatch providers, run browser automation, write or promote memory, perform live finance actions, or expose private Full ECF payloads.