[BUG] 贴纸不能调整时间轴长度

### Platform

m1

### Browser

145

### Current Behavior

<img width="1296" height="810" alt="Image" src="https://github.com/user-attachments/assets/1f92ce12-de51-4165-bb6f-aa4c60123931" />

### Expected Behavior

_No response_

### Recurrence Probability

Always

### Steps To Reproduce

必现

### Anything else?

_No response_