Repository Structure

docs/
  00-overview/
    index.md
  01-product/
    prd.md
    scope.md
    product-requirements.md
  02-architecture/
    architecture-decisions.md
    business-flow.md
  03-engineering/
    api-integration.md
    quality-gate.md
  04-delivery/
    roadmap.md
    changelog.md
  99-reference/
    repository-structure.md

This structure is designed for discoverability, scalability, and long-term maintainability as docs grow.