use node.config.json

- ref. https://nodejs.org/ja/blog/release/v23.10.0#introducing---experimental-config-file

Author: progfay

node.config.json

@@ -0,0 +1,6 @@
+{
+	"$schema": "https://nodejs.org/dist/latest/docs/node-config-schema.json",
+	"nodeOptions": {
+		"disable-warning": "ExperimentalWarning"
+	}
+}

package.json

@@ -26,8 +26,8 @@
 		"build:types": "tsc -p ./tsconfig.json",
 		"build:vite": "vite build",
 		"prepare": "npm run build",
-		"test": "NODE_OPTIONS=--disable-warning=ExperimentalWarning node --test --experimental-strip-types --experimental-test-snapshots --experimental-test-coverage **/tests/**/*.test.ts",
-		"test:update": "NODE_OPTIONS=--disable-warning=ExperimentalWarning node --test --experimental-strip-types --experimental-test-snapshots --test-update-snapshots --experimental-test-coverage **/tests/**/*.test.ts",
+		"test": "node --experimental-default-config-file --test --experimental-test-coverage **/tests/**/*.test.ts",
+		"test:update": "npm test -- --experimental-test-snapshots",
 		"lint": "run-p lint:*",
 		"lint:biome": "biome check .",
 		"lint:tsc": "tsc -p ./tsconfig.lint.json",