Identity = session + ordered job fingerprints + start_at_job + overwrite_existing; anything
else gets a clear 409. GET /config_tester/sweep/job_prompt returns one job's API prompt.
Sweep manifests now save their workflow configs in meta.configs_json.
pause/resume emit a progress event.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>