Function calculateTransitionDuration

calculateTransitionDuration(from: TrigramStance, to: TrigramStance): number
Calculate transition duration based on stance change magnitude.

Korean: 전환 시간 계산

Duration is based on the distance between stances on the octagonal wheel:
- Same stance (laterality change only): 300ms
- Adjacent stances (1-2 steps apart): 200ms
- Medium distance (3-4 steps): 300ms
- Opposite stances (4 steps): 400ms
Parameters
- from: TrigramStance
  Starting trigram stance
- to: TrigramStance
  Ending trigram stance
Returns number
Transition duration in seconds
Example
```
calculateTransitionDuration(TrigramStance.GEON, TrigramStance.TAE); // 0.2 (adjacent)
calculateTransitionDuration(TrigramStance.GEON, TrigramStance.GON); // 0.4 (opposite)
calculateTransitionDuration(TrigramStance.GEON, TrigramStance.GEON); // 0.3 (laterality change)
```
Korean
전환시간계산
- Defined in systems/animation/core/TrigramStanceTransitions.ts:75