release: add docs/architecture/10-observability-and-ops.md

release: add docs/architecture/09-frontend.md

release: add docs/architecture/08-api-contract.md

release: add docs/architecture/07-configuration-freeze.md

release: add docs/architecture/06-evidence-and-confidence.md

release: add docs/architecture/05-specialists.md

release: add docs/architecture/04-router.md

release: add docs/architecture/03-request-lifecycle.md

release: add docs/architecture/02-deployment-topology.md

release: add docs/architecture/01-system-overview.md