Spring Security's default Http403ForbiddenEntryPoint was returning 403
for all auth failures. Frontend clients treat 403 as a permission error
(not an auth error), so silent loops occurred instead of proper re-login.
Adding a custom AuthenticationEntryPoint that returns 401 makes clients
handle auth failures correctly (show login page on 401).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- LicenseDeviceService: update app_key on re-registration if blank,
fixing devices that registered before the app_key column was added
- FeatureServiceManager: send activation IM notification in afterCommit()
hook so the frontend refresh sees the committed DB state
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
