CanvasShadowProjector Class

Projects a shadow object to the floor below a canvas panel.

Automatically positions the shadow on the floor plane directly below the target, with a slight offset to avoid z-fighting.

Usage:

1. Attach this script to your shadow GameObject
2. Assign the canvas panel as the target (or leave empty to use parent)
3. Set floor Y level and offset
4. Shadow will automatically follow the panel's horizontal position