Variable SPINNING_HEEL_KICK_ANIMATIONConst

Spinning Heel Kick - 뒤돌려차기

Full spin with heel striking in reverse arc. High-risk, high-reward knockout technique.

Phases:

1. Spin (회전): Body rotates 360° - 300ms
2. Strike (차기): Heel hooks around - 350ms
3. Recovery (복귀): Complete rotation - 430ms

Total duration: 1200ms (SPINNING technique)