Redesigned Metrics Toolbar
The Metrics tab toolbar is redesigned to match the VPS and database performance pages: pill-group time-range picker, auto-period selection, and proper auto-refresh controls.
What's changed
- Time-range pill group with 8 ranges: 1h, 6h, 12h, 1d, 3d, 1w, 2w, 1M
- Period picker with Auto mode plus 1m / 5m / 10m / 15m / 30m / 1h / 6h / 1d manual options
- Period options dynamically filter to sane choices per window — no more 43k-datapoint requests
- Auto-refresh toggle with 30s / 1m / 5m intervals and manual Refresh button
- Freshness badge moved inline with the controls card so data staleness is always visible
- Single-point spikes (e.g. a brief error burst) now render as a visible dot instead of only showing on hover