{
  "endpoint": "/api/v1/next-step-pack",
  "method": "POST",
  "purpose": "Compatibility endpoint describing the mandatory transition from Stage 2 to human review. It does not generate a public pre-review pack. Supplier evidence requests, lab materials, marketplace-review routes, document indexes and form drafts are released only after reviewer sign-off.",
  "required_input": "Either send a PreflightRequest body directly, or { product_profile: PreflightRequest }.",
  "post_review_routes": [
    "Supplier evidence required before next step",
    "Discuss testing route with lab",
    "Evidence package appears ready for marketplace submission review",
    "Needs specialist review"
  ],
  "boundary": "Human review is mandatory before Stage 3. Not certification, legal advice, product approval, or marketplace approval.",
  "typical_flow": [
    "Stage 1: /api/v1/intake",
    "Stage 2: /api/v1/preflight",
    "Mandatory review: /api/consultancy/leads with email and explicit consent",
    "Stage 3: reviewer-signed pack delivered after review"
  ]
}