Rebuild the calendar popup on the reka-ui dialog primitives instead of
the shared DialogContent, so it can use a light, blurred overlay
(bg-background/20 + backdrop-blur-md) instead of the usual opaque dark
dim. The panel itself is translucent + blurred (bg-background/70 +
backdrop-blur-xl). Result: the feed stays visible, softly blurred,
behind the frosted glass. Scoped to this popup — other dialogs keep
their solid dark overlay.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>