- Implement full Defender gameplay: boids swarmers, walkers, abductors, boss fights, humanoid rescue/escape state machine, combo multiplier, and overdrive timescale across 5 levels
- Render all entities as procedural Graphics strokes (glow-stroke pair) with a toroidal wraparound world, per-level accent palettes, CRT overlay, and a custom vector font for banners/title
- Register the game in the registry, scene dispatch, asset manifest, and soundtrack overrides so it appears alongside other arcade titles
- Add tools/verifyDefender.js covering wrap math, seam-adjacent boids, every rescue transition, overdrive thresholds, entity leak bounds, boss/level tally, spiral-of-death guard, determinism, and a Monte-Carlo bot soak
