The overlay was drawing the sweep image and glitch burst bars at negative-x offsets (e.g. `-w/2`) as if in a centered coordinate system, but Phaser graphics/images live in scene space starting at 0. This shifted the sweep left by half the viewport and clipped the glitch bars off-screen. Anchor them to `0` / `w/2` so they align with the visible area.
- Boot the game from a static server with no build step (Phaser 4 vendored in lib/)
- Main menu (New Game button) and GameScene where clicking makes the ship fly there
- All tunables live in data/*.json (game/menu/ship), loaded via manifest + Config singleton
- Ship behavior driven by arcade physics (thrust, drag, maxSpeed, arrival) with a Node test harness (dev/ship-behavior.test.mjs) and a dev smoke page that boots straight into GameScene
- Project conventions documented in docs/PROJECT_NOTES.md; README rewritten to describe layout, run instructions, and dev tools