chore: add agent instructions and issue tracker config

AGENTS.md carries project facts for Claude Code, Codex, and Luna. The
docs/agents files configure the engineering skills: GitHub Issues as the
tracker with wayfinder conventions, default triage labels, and the
single-context domain doc layout.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
de0be0bb7bflamboh committed on 9/17/2026, 5:41:03 AMparent8e0e45f
4 files changedLine totals unavailable