OOAD Build — Implementation

Writes code in Clean layers + TDD satisfying RE and architecture, traced FR/UC/US. See references/ooad-vocabulary.md. Length is earned (Clean 4 + TDD + OpenAPI + GRASP guardrails are graded artifacts) — do not thin to pure delegation.

Preconditions

• docs/02-requirements/ validated.
• docs/03-architecture/ approved (C4/UML + ADRs).
• docs/agents/workflow.md + docs/agents/architecture.md.

Process

1. Prepare environment

Per stack chosen in ooad-architect: