Added color reducer. Performed state management refactor to prevent circular behavior.

vitest.config.ts

@@ -0,0 +1,10 @@
+import topLevelAwait from "vite-plugin-top-level-await";
+import wasm from "vite-plugin-wasm";
+import { defineConfig } from "vitest/config";
+
+export default defineConfig({
+  plugins: [wasm(), topLevelAwait()],
+  test: {
+    environment: "jsdom",
+  },
+});