- Introduce BalatroCrtPipeline for subtle CRT effects (scanlines, grain, glitch bursts)
- Attach CRT pipeline to main camera with event-driven pulse on boss rounds and game over
- Add frameIsBlank check to detect blank/unpainted texture frames and fall back to procedural cards
- Implement roundedArtKey and addRoundedArt for rendering art with rounded corners
- Update joker, tarot, planet, spectral, deck, shop, and voucher rendering to use rounded art
- Increase font sizes across UI elements for better readability
- Add border strokes to joker cards with custom art
- Trigger CRT pulse on high multipliers (x2+) and score announcements
- Reference art image paths in balatro-artwork.json
