Pricing popover:
- Teleport to body + fixed-position re-measuring on hover/scroll/resize so it
escapes the card's overflow-hidden clip that was chopping off the lower
half of the panel.
- Header + border adopt the platform theme via platformBorderClass /
platformBadgeLightClass so each model card reads at a glance.
Accessible groups:
- Backend AvailableGroupRef / user DTO now expose subscription_type,
rate_multiplier and is_exclusive. User-specific rates continue to come
from /groups/rates (same pattern as the API keys page).
- Table renders groups through the shared GroupBadge, which already deepens
subscription-type colors and shows default vs custom rate as
<s>default</s> <b>custom</b>.
- Exclusive groups are labelled with a purple shield row, public groups
with a grey globe row so admins and users can tell at a glance which
groups they got via explicit grant vs. public access.
i18n keys for exclusive / public / their tooltips added to zh + en.
ff4ef1b574