Goalie save drill, hand/stick IK, and weighted paddle plant.

Add img2mesh puck machine for live goalie AI/save testing, catch/block arm IK
with smooth stance blends, and a mover-space stick the blocker hand follows.

test/goalie.mjs

@@ -27,7 +27,7 @@ section('goalie is a skinned skeleton, not a capsule');
   ok(goalie.gear.trapper.parent === goalie.skelData.bones.handL, 'trapper is on the left hand');
   ok(goalie.gear.blocker.parent === goalie.skelData.bones.handR, 'blocker is on the right hand');
   ok(goalie.gear.mask.parent === goalie.skelData.bones.head, 'mask is on the head');
-  ok(goalie.gear.stick.parent === goalie.skelData.bones.handR, 'paddle is in the blocker hand');
+  ok(goalie.gear.stick.parent === goalie.mover, 'paddle is mover-planted (hand IKs to it)');
   goalie.destroy();
 }
 
@@ -100,4 +100,107 @@ section('goalie drops low in the butterfly');
   goalie.destroy();
 }
 
+section('catch save IKs the trapper onto the puck');
+{
+  const { goalie } = make();
+  // Settle in ready at the crease.
+  for (let i = 0; i < 30; i++) goalie.update(DT, { x: goalie.pos.x - 8, y: 0.5, z: 0 });
+  const hand = new THREE.Vector3();
+  goalie.skelData.bones.handL.getWorldPosition(hand);
+  // Glove-side high puck (world −Z is goalie left when facing −X at end +1).
+  // Kept inside a reachable arm envelope so the test measures blend, not clamp.
+  const target = {
+    x: goalie.pos.x - 0.18,
+    y: 1.05,
+    z: goalie.pos.z - 0.3,
+  };
+  const before = hand.distanceTo(target);
+  goalie.playSave('catch', target);
+  ok(goalie.animator.save?.kind === 'catch', 'save state is a catch');
+  for (let i = 0; i < 40; i++) goalie.update(DT, target);
+  goalie.skelData.bones.handL.getWorldPosition(hand);
+  const after = hand.distanceTo(target);
+  ok(after < before - 0.08, `trapper moves onto the puck (${before.toFixed(2)} → ${after.toFixed(2)})`);
+  ok(after < 0.45, `trapper lands near the puck (err ${after.toFixed(2)})`);
+  let bad = false;
+  for (const b of goalie.skelData.list) {
+    for (const e of b.matrixWorld.elements) if (!Number.isFinite(e)) bad = true;
+  }
+  ok(!bad, 'catch IK keeps bone matrices finite');
+  goalie.destroy();
+}
+
+section('block save IKs the blocker onto the puck');
+{
+  const { goalie } = make();
+  for (let i = 0; i < 30; i++) goalie.update(DT, { x: goalie.pos.x - 8, y: 0.5, z: 0 });
+  const hand = new THREE.Vector3();
+  goalie.skelData.bones.handR.getWorldPosition(hand);
+  // Blocker-side high puck (world +Z is goalie right when facing −X).
+  const target = {
+    x: goalie.pos.x - 0.18,
+    y: 1.0,
+    z: goalie.pos.z + 0.3,
+  };
+  const before = hand.distanceTo(target);
+  goalie.playSave('block', target);
+  ok(goalie.animator.save?.kind === 'block', 'save state is a block');
+  for (let i = 0; i < 40; i++) goalie.update(DT, target);
+  goalie.skelData.bones.handR.getWorldPosition(hand);
+  const after = hand.distanceTo(target);
+  ok(after < before - 0.08, `blocker moves onto the puck (${before.toFixed(2)} → ${after.toFixed(2)})`);
+  ok(after < 0.5, `blocker lands near the puck (err ${after.toFixed(2)})`);
+  goalie.destroy();
+}
+
+section('save IK clears after the hold');
+{
+  const { goalie } = make();
+  for (let i = 0; i < 20; i++) goalie.update(DT, { x: goalie.pos.x - 6, y: 0.5, z: 0 });
+  goalie.playSave('catch', { x: goalie.pos.x - 0.2, y: 1.1, z: goalie.pos.z - 0.4 }, { duration: 0.25 });
+  for (let i = 0; i < 45; i++) {
+    goalie.update(DT, { x: goalie.pos.x - 6, y: 0.5, z: 0 });
+  }
+  ok(goalie.animator.save == null, 'save state expires after duration');
+  goalie.destroy();
+}
+
+section('stick is a heavy plant the hand follows');
+{
+  const { goalie } = make();
+  for (let i = 0; i < 45; i++) goalie.update(DT, { x: goalie.pos.x - 10, y: 0.5, z: 0 });
+  const stick = goalie.gear.stick;
+  const hand = new THREE.Vector3();
+  const grip = new THREE.Vector3();
+  const measure = () => {
+    grip.set(0, -0.05, 0.016).applyMatrix4(stick.matrixWorld);
+    goalie.skelData.bones.handR.getWorldPosition(hand);
+    return hand.distanceTo(grip);
+  };
+  // Grip is shaft-local; hand should sit on it after settle.
+  let dist = measure();
+  ok(dist < 0.08, `blocker hand holds the shaft (err ${dist.toFixed(2)})`);
+
+  // Stick should not whip when the torso shuffles — move laterally hard and
+  // the paddle lags rather than snapping with the hand bone.
+  const before = stick.position.clone();
+  for (let i = 0; i < 8; i++) {
+    goalie.update(DT, { x: goalie.pos.x - 4, y: 0.4, z: 1.2 + i * 0.05 });
+  }
+  const jump = stick.position.distanceTo(before);
+  ok(jump < 0.12, `stick plant lags under shuffle (Δ ${jump.toFixed(3)})`);
+
+  // Block save: dominant hand stays on the stick (stick steers to the puck).
+  const target = {
+    x: goalie.pos.x - 0.2,
+    y: 1.05,
+    z: goalie.pos.z + 0.35,
+  };
+  goalie.playSave('block', target);
+  for (let i = 0; i < 35; i++) goalie.update(DT, target);
+  dist = measure();
+  ok(dist < 0.1, `hand stays on shaft during block save (err ${dist.toFixed(2)})`);
+  goalie.destroy();
+}
+
 done('goalie');