Send emails: video call cancellation

Sends update emails for a video call Appointment to the recipients you list. The route does not change the Appointment. **Auth:** bearer token. The caller must be a Practitioner, an admin or a super admin, or hold the "System Owner" access policy. **Scope:** the caller's project (from the token). ## Behaviour - `emailRecipients` takes 1 to 20 entries. Each has an `email` and a `profileRef` (`Practitioner/<id>` or `Patient/<id>`). Duplicate emails are dropped. - The caller is never emailed, even when listed. If no recipient is left, the route returns an empty `emailRecipientsResult`. - The email contains the recipient's TAN (a one-time access code) and its expiry. A recipient with no TAN gets no email and `isEmailSent` is `false`. - The email includes the Appointment title, the practitioner's name, start and end in CET. The `Origin` header of your request sets the app domain used in the email, and the request language sets its language. - Emails are sent one by one. A failed send does not fail the request. Check `isEmailSent` for each recipient. ## Example ```bash curl -X POST 'https://api.sandbox.ovok.com/video-call/livekit/mail/update' \ -H 'Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpYXQiOjE3NjcyNjg4MDAsImV4cCI6MTc2NzI3MjQwMH0.Ql3B_ztDvctlyZ2z0vp4sl3ExXRQGkzmxdmTAqxNzZk' \ -H 'Content-Type: application/json' \ -d '{ "appointmentId": "c3499c27-2973-0a7f-807e-fb8676a92dcb", "emailRecipients": [{ "email": "max.mustermann@example.com", "profileRef": "Patient/c3499c27-2973-0a7f-807e-fb8676a92dcb" }] }' ```