Virtual Machines: redesigned list page

The VM list page in the console got a full refresh. New header summary with four KPI cards: fleet load (avg CPU and disk utilization plus the peak VM), allocated capacity (vCPU/RAM/disk totals), recent activity feed, and public network usage for the current month with live bps. The instance table is now full-width with denser rows that surface image, class tier, allocation, public/private IPs, runtime state, per-VM load bars, SSH key and CPU burst setting at a glance. Under the hood, the list endpoint now denormalizes class and key names so the page loads in a single round-trip instead of fanning out across five separate API calls.