- Added Epsilon Live2D model (Cubism 4) with full motion/expression set
- KiraAvatar now loads Live2D via PixiJS + cubism4 renderer
- Idle animation auto-plays on load
- Lip-sync: PARAM_MOUTH_OPEN_Y driven by speaking state
- 8 expressions (Normal, Smile, Sad, Angry, Surprised, Blushing, f01, f02)
- 15 motion files including idle, tap, flick, shake
- Physics, eye blink, and LipSync parameter groups configured
- Falls back to animated SVG placeholder if model isn't available
