64x64 avatarmedium looked soft on high-DPI screens. Switching the
GetPlayerSummaries field to avatarfull (184x184) and constraining
display size to 64px via .live-state .avatar gives sharp rendering on
retina/4k panels at the cost of a slightly larger CDN fetch (still
hot-linked, so no proxying cost).
Also adds the previously-missing CSS for the live-state player grid:
avatar+name+meta arranged in a tight 2-column grid per card, link
spans the avatar+name so the meta stays non-interactive.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>