- Add object-fit: contain + black background for video in DTMediaFrame
- Style .dt-card-badge with mode-colored background, padding, and
bevel-aware positioning (negative right offset for clean diagonal clip)
- Restore DTStaggerContainer in react-native (was incorrectly deleted)
- Update DTGallery, DTModal, DTMobileFilterOverlay, DTMediaFrame components
- Refresh showcase pages for desktop and mobile
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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