chore(repo): remove tracked audit scratch files

Remove obsolete implementation plans and the probe write marker so temporary work artifacts no longer ship with the repository.

Audit: H01

Implemented by GPT-5.6 Sol with Codex.
3b460833e2Julius Marminge committed on 9/18/2026, 12:49:53 AM· committed by Julius Marmingeparent2e0579e
3 files changedLine totals unavailable