art-kit

The art primitives Forge was missing. Zero dependencies, one file, no assets.

Two halves

• Static pixel art — indexed palette, pixel canvas with nearest-neighbour scaling, draw ops, delta undo, dithering, median-cut, sprite sheets, isometric.
• Live generative visuals — a frame loop you can run alone or drive from game-kit's timestep.

Usage, the licence position, and the tests are in the README. Tests: node test-node.js.