hygiene: TESTING-REPORT.scm in repo root violates the repo's own MUST invariant

[hyperpolymath]

"No SCM files in repo root — only in .machine_readable/"; a TESTING-REPORT.adoc twin exists. Source: TESTING-REPORT.scm:1.

https://claude.ai/code/session_01GJatEm2TVFSTBEkKXmserJ