update jest.config.ts

jest.config.ts

@@ -0,0 +1,15 @@
+import type { Config } from 'jest';
+
+const config: Config = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  extensionsToTreatAsEsm: ['.ts'],
+  transform: {
+    '^.+\\.ts$': ['ts-jest', { useESM: true }],
+  },
+  moduleNameMapper: {
+    '^(\\.{1,2}/.*)\\.js$': '$1',
+  },
+};
+
+export default config;