Release v1.6.0

Added

• Added typed SDK API errors for non-2xx responses, preserving HTTP status, API code, message, and response body for callers.
• Added exc compute volume attach and exc compute volume detach commands with attachment-aware --wait support.
• Added exc compute volumes --vm_id and exc compute volume attachments list for VM- and volume-centric attachment inspection.

Fixed

• Fixed exc compute volume delete --wait so immediate DELETED responses complete without polling deleted volumes.
• Fixed volume attach and detach waiters to poll VM attachment state and surface polling errors instead of timing out or reporting false success.
• Fixed table alignment for exc compute volumes and exc compute volume attachments list.
• Hid terminated VMs from exc compute volume attachments list by default; use --include_terminated to show them.