- Align the backend seeded default surgery template with the report editor's default report content.
- Add backend demo defaults for the default template, Kimi provider, and Xunfei speech proxy configuration.
- Change system reset into a super-admin demo mode factory reset that clears reports, audit logs, files, custom templates, and non-default users.
- Keep only the default admin, manager, doctor, and default surgery template after demo reset.
- Replace the old local-only reset all data button with a two-confirmation backend reset flow.
- Add tests covering demo default alignment and database-backed demo reset behavior.
- Update docs to describe demo mode reset semantics and production credential cautions.
- Remove the super-admin one-time migration from browser local settings into backend AI and speech settings.
- Delete the migration-specific SystemSettings unit test that no longer matches the desired behavior.
- Restore feature, module, testing, and progress docs so settings secrets are documented as backend-managed only.
- Add a super-admin-only settings merge that copies legacy local AI provider keys into an empty backend settings record.
- Add matching migration for legacy Xunfei APPID, APIKey, and APISecret without overwriting existing backend secrets.
- Cover the migration and secret-preservation behavior with SystemSettings unit tests.
- Update feature, module, progress, and testing docs for the settings migration behavior.
