chore(release): 4.67.1 [skip ci]

## [4.67.1](https://github.com/antialias/soroban-abacus-flashcards/compare/v4.67.0...v4.67.1) (2025-10-22)

### Bug Fixes

* **complement-race:** fix react-spring interpolation TypeScript errors ([0add9e4](0add9e4ef1))

CHANGELOG.md

@@ -1,3 +1,10 @@
+## [4.67.1](https://github.com/antialias/soroban-abacus-flashcards/compare/v4.67.0...v4.67.1) (2025-10-22)
+
+
+### Bug Fixes
+
+* **complement-race:** fix react-spring interpolation TypeScript errors ([0add9e4](https://github.com/antialias/soroban-abacus-flashcards/commit/0add9e4ef1d69e4e92ffe279cce09c68efa43714))
+
 ## [4.67.0](https://github.com/antialias/soroban-abacus-flashcards/compare/v4.66.2...v4.67.0) (2025-10-22)
 
 

apps/web/src/app/arcade/complement-race/components/RaceTrack/GhostTrain.tsx

@@ -1,6 +1,6 @@
 'use client'
 
-import { useSpring, useSprings, animated } from '@react-spring/web'
+import { useSpring, useSprings, animated, to } from '@react-spring/web'
 import { useMemo, useRef } from 'react'
 import type { PlayerState } from '@/arcade-games/complement-race/types'
 import type { RailroadTrackGenerator } from '../../lib/RailroadTrackGenerator'
@@ -146,10 +146,9 @@ export function GhostTrain({
     <g ref={ghostRef} data-component="ghost-train" data-player-id={player.id}>
       {/* Ghost locomotive - animated */}
       <animated.g
-        transform={locomotiveSpring.x.to(
-          (x, y, rot) => `translate(${x}, ${y}) rotate(${rot}) scale(-1, 1)`,
-          locomotiveSpring.y,
-          locomotiveSpring.rotation
+        transform={to(
+          [locomotiveSpring.x, locomotiveSpring.y, locomotiveSpring.rotation],
+          (x, y, rot) => `translate(${x}, ${y}) rotate(${rot}) scale(-1, 1)`
         )}
         opacity={locomotiveSpring.opacity}
       >
@@ -208,10 +207,9 @@ export function GhostTrain({
       {carSprings.map((spring, index) => (
         <animated.g
           key={`car-${index}`}
-          transform={spring.x.to(
-            (x, y, rot) => `translate(${x}, ${y}) rotate(${rot}) scale(-1, 1)`,
-            spring.y,
-            spring.rotation
+          transform={to(
+            [spring.x, spring.y, spring.rotation],
+            (x, y, rot) => `translate(${x}, ${y}) rotate(${rot}) scale(-1, 1)`
           )}
           opacity={spring.opacity}
         >

package.json

@@ -1,6 +1,6 @@
 {
   "name": "soroban-monorepo",
-  "version": "4.67.0",
+  "version": "4.67.1",
   "private": true,
   "description": "Beautiful Soroban Flashcard Generator - Monorepo",
   "workspaces": [