fix: profile avatar press animation and story viewer re-open reliability
Remove .interactive() from liquidGlassCircle to fix color blowout on
press. Add custom scale animation via simultaneousGesture. Switch
profile story viewer from customFullScreenCover to standard
fullScreenCover to eliminate blocking delay on re-open.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>