/api/auth/settings is auth-exempt (the frontend + the pre-login page read it for
keybinds/TTS prefs), so non-admin and unauthenticated callers get a scrubbed
copy. The previous scrub only blanked TOP-LEVEL string values whose key matched a
short suffix list — so a secret nested under a non-secret parent key, or stored
under a key outside the list, would leak. A real exposure when the app is
reachable over a Cloudflare tunnel / reverse proxy.
- src/settings_scrub.py: NEW stdlib-only module with the scrub helpers (deep/
recursive; broadened secret-key patterns). Kept separate from auth_routes so it
imports + unit-tests WITHOUT pulling the FastAPI / auth / database chain
(addresses review: the test no longer fails at collection on the DB import).
- routes/auth_routes.py: import scrub_settings from the module.
- tests/test_settings_scrub.py: import the tiny module directly.
Ran: pytest tests/test_settings_scrub.py (8 passed); verified the test pulls no
db/auth modules into sys.modules; py_compile routes/auth_routes.py.
Co-authored-by: Kanaru92 <107661007+Kanaru92@users.noreply.github.com>
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