prd-to-pr

@bzellman

End-to-end pipeline from PRD to merged PR. Chains /prd-taskmaster → /shape-spec → plan refinement counsel (Opus 4.6 + Codex 5.4 extra high) → multi-agent implementation → /simplify → /pr-handoff-to-codex with adversarial review → Copilot feedback review → /self-healing-deploy. Use when user wants the full pipeline: "build this feature", "PRD to PR", "end to end".