Function generateTensionChart

generateTensionChart(
    viz: RecoveryVisualization,
    width?: number,
    height?: number,
): string
Generate ASCII art visualization of tension curve

Korean: 근육 긴장도 곡선 ASCII 시각화

Creates a simple ASCII chart of muscle tension over time.
Parameters
- viz: RecoveryVisualization
  Visualization data
- width: number = 60
  Chart width in characters (default: 60)
- height: number = 10
  Chart height in characters (default: 10)
Returns string
Example
```
const viz = generateRecoveryVisualization(JAB_ANIMATION_ENHANCED);
const chart = generateTensionChart(viz);
console.log(chart);
```
Korean
긴장도차트생성
- Defined in systems/animation/systems/RecoveryVisualization.ts:268