Development record

01-ahoy's user-scope tree marks worktrees/<root-sha>/<name>/ NOT BUILT, but the build loop creates each lane's worktree there today (internal/core/implement/loop/lane.go, WorktreeStoreRel) and ahoy inspects the store (internal/core/ahoy/store_worktrees.go); only the store's verbs and reclaim are unbuilt, as 03-configuration.md's worktree-store section says.