relay-eval dashboard: cleaner design with operator symbols
- use unicode symbols (◆ ▲ ■ ● etc.) per operator instead of colored CSS dots
- remove confusing connection-status dots; offline relays get dimmed + tag
- human-readable timestamps ("3h ago") with exact UTC on hover
- plain english window ("5 minutes" not "300s")
- cleaner visual hierarchy, slimmer coverage bars
- better classification names in breakdown section
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>