Development record

abcd reserve refuses in a fresh store worktree: a worktree made with git worktree add under ~/.abcd.noindex/worktrees/<root-sha>/ has no .abcd/.work.local/, so reserve says 'nowhere to keep this copy's key; run abcd ahoy to set it up' and pushes nothing, although AGENTS.md tells every concurrent session to make exactly such a worktree and reserve before starting.