The sed stripping only handled platform/workspace-server/... paths, but
go tool cover may emit platform/internal/... paths (without workspace-server/).
When the pattern doesn't match, rel retains the full package import path and
the allowlist grep -qxF fails to find the short entry (e.g. internal/handlers/tokens.go).
Add a second substitution to strip the platform/ prefix as a fallback so
both path formats normalize to the same allowlist-relative form.