PR #1017 follow-ups: stale tools/tests/test_X.py doc references after the co-location rename nf-8fu6 ← Beads

Twinned from https://github.com/cfsh/ninefold/issues/1024 by tools/beads/import_github.py's reconcile pass.

Suggestions from ninefold-reviewer's review of #1017.

#1017 (design 010 T6) renamed most of tools/tests/test_X.py to co-located <dir>/<stem>_test.py. The PR itself carefully swept GOVERNED_TESTS, MENTIONS, doc_pointers_test.py's CURRENT_TREE_DOCS, and every sys.path bootstrap — but prose references to the old paths in a handful of other current-tense docs were out of scope and are now stale:

• notes/shell-policy.md:35 — tools/tests/test_launchers.py → launchers_test.py
• notes/history.md:126 — tools/tests/test_launchers.py → launchers_test.py
• notes/history.md:473 — tools/tests/test_nflib_gh.py → tools/nflib/gh_test.py
• tools/github_live/README.md:15 — tools/tests/test_github_live.py → tools/github_live/discovery_bridge_test.py
• tools/github_live/README.md:17 — ` test_web_frontend.py::StandaloneTests → tools/web_frontend/server_test.py::StandaloneTests `
• tools/github_live/README.md:60 — tools/tests/test_github_live.py → tools/github_live/discovery_bridge_test.py
• tools/web_frontend/README.md:65 — ` tests/test_web_frontend.py::StandaloneTests → server_test.py::StandaloneTests `
• tools/web_frontend/README.md:70 — test_web_frontend.py → server_test.py
• tools/reviewer/CHARTER.md:157 — tools/tests/test_charter_notes.py → tools/reviewer/charter_notes_test.py (this is the reviewer's own operating doc — a future pass reading this line goes looking for a file that no longer exists there)

None of these files are in #1017's diff, so none of this is caught by any existing gate (doc_pointers_test.py's CURRENT_TREE_DOCS is a small curated list that doesn't cover them). Nine one-line edits across five files — mechanical, no design decision needed.

Also worth a look while in tools/github_live/discovery_bridge_test.py (renamed with no content diff): its docstring still says "unittest discover -s tools/tests needs to find it, since discovery does not walk outside its start directory" — no longer true now that discovery starts at the repo root. Same class of staleness, same file.