Raff v0.7.0: Volumes, backups, snapshots, MFA, and SSH keys

Added

Volumes. Create, attach, detach, resize, and snapshot storage volumes, with mount instructions for Linux and Windows VMs.

Backups. Instant or scheduled backups with retention limits, restore, and reliable background processing.

Snapshots for VMs and images, with restore.

MFA and SSH key management for account and VM security.

PayTR payment provider and full payment method management.

Changed

VM create, details, and table improved, with new Snapshots, Backups, and Volumes tabs on VM detail.

Cleaner Marketplace Templates UI with new template options.