PR #1015 follow-ups: stale tools/probes/ error strings nf-cfp ← Beads

Twinned from https://github.com/cfsh/ninefold/issues/1061 by tools/beads/import_github.py's reconcile pass.

Suggestions from ninefold-reviewer's review of #1015

- Two diagnostic messages still point a developer at the now-emptied tools/probes/ directory, both flagged on the pass-1 CONVERGED verdict and still present after the pass-2 rebase: - tools/pr/probe_gate.py, in main(): say(f"--only names probe(s) not under {root / 'tools' / 'probes'}: " + ...). Should read like the already-fixed run_probes.py message: point at games/*/probes/ and shared/probes/. - tools/pr/affected_probes.py, in main(): err(f"✗ no probes found under {root / 'tools' / 'probes'}"). Same fix; this file wasn't touched by #1015 at all even though its own task card names it as the tool used to verify rule 4 didn't drift.

Both are cheap string fixes, no logic change — the selection logic behind them already goes through the corrected probe_select functions.