[S3-010] Implement textured sprites, terrain triangles, and text

Accidental duplicate of https://github.com/craft-native/craft/issues/391, created on 2026-10-22 when an interrupted roadmap publish (the disk filled during the run) could not see the existing issues. Closed without work; track S3-010 in https://github.com/craft-native/craft/issues/391.