- Move service.py -> application/service.py (SchedulerService class name unchanged; build_object_store / build_storage_http_client move along) - main.py imports schedule.application.service - Rewrite worker.py's lazy `from schedule.service import build_object_store` and test_worker.py's mock patch string targets — same class of bug as the test_janitor patch strings (silent no-op until the old file is deleted) - Delete flat service.py (orphaned; only docstring refs remain in orchestrator, cleaned up in stage 6) - Zero behavior change; schedule/pyproject.toml untouched Co-Authored-By: Claude <noreply@anthropic.com>