nx_minecraft_mcu_compose_test.nx

nx_minecraft_mcu_compose_test.nx -- the session-1 vision substrate-bound. Per user 2026-05-19 session 1: "we want to build minecraft equivalent on the lowest possible hardware." This is the substrate-side proof that the path is structurally complete. No ESP32 binary yet; the integration layer is queued. But every primitive needed is now composed into a working scaffold: - 32x16x8 voxel world in nx_tissue at 3bpp (~1.5 KiB) - 32x16 1bpp framebuffer (64 bytes) -- tiny OLED size - DDA raycast renders the world to framebuffer - 6-button input drives player camera direction - chunk paginator caches loaded tissues (1 chunk loaded; structure ready for many more from flash) 22 assertions verify the whole pipeline works end-to-end.