- Add VoidBase content layer (neutral dark+grit surface at depth -1) so the
grade shader's two-light shadow lift can paint amber/azure onto the void
(the clear color bypasses filters)
- Extend grade shader with uLift2* and uBreath uniforms: side A glows color 1,
side B glows color 2 across the seeded axis, with a slow sinusoidal trade
- Wire breath period/depth from config into per-frame update()
- Rework WandererStar to anchor to the camera view each frame (wrap-in +
parallax trail) so it stays visible in the sky regardless of ship travel;
increase default core/halo sizes for a more present companion star
- Update systems.json binary effect with lift, breath, void config and larger
wanderer sizes
- Add test coverage for the new two-light lift, breath animation, and shader
uniform declarations (59 checks total)