- Added `accountSid` and `twilioPhoneNumber` fields to Notification
type, MongoDB model, and frontend type instead of reusing
`address` and `homeserverUrl`
- Updated provider, validation, form hook, and form UI to use new fields
- Added Pushover and Twilio to notificationsService routing tests
(both handleNotifications and sendTestNotification)
- All 59 tests passing
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>