feat: version campaigns and document original puzzle design

Restore v0.1 and v0.2 archives with separate progress, publish the curved v0.3 campaign, and document the original 24-level design with reproducible evidence. Refine board presentation and movement, and keep video lab tooling within its own directory.

src/collision-animation.js

@@ -3,8 +3,8 @@ import { segmentHexHit } from './path-math.js';
 export function collisionPhase(progress, reduced=false){
  const t=Math.max(0,Math.min(1,progress));
  const distance=t<.42?1-Math.pow(1-t/.42,2):t<.64?1:Math.pow(1-(t-.64)/.36,2);
- const impact=t>=.42&&t<.64?Math.sin((t-.42)/.22*Math.PI):0;
- return {distance,impact,kick:reduced?0:Math.sin(Math.max(0,t-.42)/.22*Math.PI*2)*impact};
+ const impact=t>=.42&&t<.72?Math.sin((t-.42)/.30*Math.PI):0;
+ return {distance,impact,kick:reduced?0:Math.sin(Math.max(0,t-.42)/.58*Math.PI)*Math.exp(-Math.max(0,t-.42)*2)};
 }
 // Stop the drawn silhouette at first contact, avoiding visible overlap from collider tolerance.
 export function contactPath(points,blocker,radius){