Fixed-step world runtime, event bus wire protocol between lanes, integration
seam (game.ts) with placeholder ball. Lanes A/B/C own disjoint dirs.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Fall Guys x Splatoon x Micro Machines — paint-coverage-as-loadout blob racer.
GDD.md is the review artifact: feature tiers, draft 7-colour buff table,
tech recommendation (web-first three.js+Rapier), milestones, Opus 4.8 lanes.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
