Add MMS attachment support — multipart send, base64 storage, image display

Shipped

20 مارس 2026 في 1:52 ص UTC

صاحب البلاغ

Kamo

Commit

bcd7ad3

- RingCentralProvider: override sendSms with multipart/form-data MMS path - VoipMessageService: accept attachment bytes, store base64 data URL in attachmentUrl - SmsController: decode base64 attachment from request, include attachmentUrl in response