Renderer Abstraction

Rengine separates render functions from entity state. A box renderer can target canvas by drawing into a 2D context, or target React by returning absolutely positioned elements with computed transform styles.

The canvas path also supports transformation-point rendering. Blue, red, and relationship markers expose the distinction between entity position, anchor, and anchor-to-position offset, which is essential when debugging nested transforms.

• Canvas rendering uses translate, rotate, and fillRect against the current entity transform.
• React rendering converts the same transform data into CSS position, scale, and rotation.
• Texture rendering is implemented for the React path as an image renderer.
• Wireframe/debug overlays expose the renderer's transform basis.