Function createKickAnimation

Create a standard kick animation with proper phases

All kicks follow the Korean martial arts pattern:

1. 기본자세 (Stance) - Fighting stance at t=0
2. 준비 (Chamber) - Knee lifts
3. 차기 (Extension) - Leg extends
4. 정점 (Peak) - Hold at extension
5. 회수 (Retraction) - Return through chamber
6. 복귀 (Recovery) - Return to stance