fix: close phase 2 journey blockers

tests/unit/scroll-drive-controller.test.ts

@@ -247,6 +247,33 @@ describe('useScrollDrive', () => {
       acceleration: expect.closeTo(0.6708070121920944, 14),
       driveSpeed: expect.closeTo(0.7300617499975173, 14),
     });
+    expect(callbacks).toHaveLength(1);
+
+    const decayingAccelerations: number[] = [];
+    let frameNow = 216;
+    while (callbacks.size > 0 && frameNow < 10_000) {
+      expect(callbacks).toHaveLength(1);
+      const decayFrame = [...callbacks.entries()][0]!;
+      callbacks.delete(decayFrame[0]);
+      decayFrame[1](frameNow);
+      await nextTick();
+      decayingAccelerations.push(drive().acceleration);
+      frameNow += 16;
+    }
+
+    expect(decayingAccelerations.length).toBeGreaterThan(1);
+    expect(decayingAccelerations.every((value, index) => (
+      index === 0 || value <= decayingAccelerations[index - 1]!
+    ))).toBe(true);
+    expect(decayingAccelerations.at(-1)).toBe(0);
+    expect(drive()).toMatchObject({
+      scrollY: 750,
+      routeProgress: 0.75,
+      direction: 0,
+      acceleration: 0,
+      driveSpeed: 0.18,
+    });
+    expect(callbacks).toHaveLength(0);
 
     window.dispatchEvent(new Event('scroll'));
     expect(callbacks).toHaveLength(1);