1.0.7

fix: preserve camera framing during perspective solve

Keep the 3D cursor’s pre-solve screen offset and reuse current camera shift when solve returns near-zero shift, so
drawing/editing no longer snaps back to center. Also preserve camera view offset/zoom across solve and rotation
updates.

1.修复绘制/编辑线段时视图瞬间回中心的问题
2.解算时保留3D游标屏幕偏移并继承当前shift
3.相机更新后恢复Camera View的offset/zoom，保持观察构图稳定