v1.5.0

---

1. fix: ensure DrawingCanvas receives mouse hits when transparent.
2. fix: resolve Settings panel Swift concurrency isolation warnings.
3. fix: prevent crash when resetting zoom after panning.

---

1. 修复：画布处于透明状态时依然能够响应鼠标点击事件
2. 修复：消除设置面板 Swift 并发隔离相关警告
3. 修复：拖动视图后重置缩放时避免程序崩溃