Maity: Board

Keep the Why: runner decisions of 2026-10-22

tsk-hp6bp4nqd5nm done chore Maity Coder Claude 004 (maity-coder-claude-004)

From the coordinator handover: Python 3.11 minimum everywhere, agent starts need the maintainer go by default (root context). Runner layout and offered harnesses go to the CLI owner for cli/context/runner.md.