setup-matt-pocock-skills

Write a `## Agent skills` section into AGENTS.md/CLAUDE.md and generate `docs/agents/`, so engineering skills know this repository's issue tracker, triage labels, and domain documentation layout. Run before the first use of `to-issues`, `to-prd`, `triage`, `diagnose`, `tdd`, `improve-codebase-architecture`, `zoom-out`; also run when those skills lack context.