Main introduced executeAndDrain/mergeUsage refactor. Resolve by keeping
main's refactored structure and re-applying EnvRoot to the switch/case
in runTask. Rename newTestDaemon → newGCTestDaemon to avoid collision
with the helper added in daemon_test.go on main.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Move WriteGCMeta from runTask() to handleTask() so it runs after
task completion, not at start. Mid-task crashes leave orphan dirs
that get cleaned by GCOrphanTTL.
- Strengthen isBareRepo to check both HEAD and objects/ directory.
- Remove empty workspace directories after all task dirs are cleaned.
- Add 30s context timeout to git worktree prune to prevent hangs.
- Add comprehensive unit tests for shouldCleanTaskDir (8 scenarios),
cleanTaskDir, gcWorkspace empty-dir cleanup, isBareRepo, and
WriteGCMeta/ReadGCMeta roundtrip.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
