cbqManager

fix(harvester): isolate Queue Depth sampling so a queueHealth failure can't stop it (#15)

test(e2e): whole-tool quality walkthrough — one human-like console tour (#9)

test(e2e): lighten the connection-unreachable walk (one real 503, rest stubbed) (#27)

feat(failed-jobs): on-demand full exception + stack trace (follow-up to #26)

docs(e2e): record that #25 removed the worker-cap OOM; cap stays 2 for one heavy spec