- test_sprint45.py: compute SETTINGS_FILE lazily via _get_settings_file() so it
reads HERMES_WEBUI_TEST_STATE_DIR at call time (not at import time, when conftest
hasn't yet set the env var). Fixes test isolation across all 1078 tests.
- test_sprint45.py: use auth cookie in teardown when clearing password post-test.
- test_sprint45.py: remove test_synced_version_strings (checks local-patch version).
- static/i18n.js: add zh missing keys: onboarding_password_will_replace,
onboarding_password_keep_existing, onboarding_password_remains_disabled.
- server.py: revert server_version to HermesWebUI/0.50.38 (matches master).
