Add gardener-run.sh as a thin cron wrapper that files an action issue
referencing formulas/run-gardener.toml, following the same pattern as
planner-poll.sh. The action-agent picks up the issue and executes the
gardener formula steps in an interactive Claude session.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>