fix: add test script and jest config to main branch

Author: nikohoffren

jest.config.js

@@ -0,0 +1,20 @@
+export default {
+  testEnvironment: 'jsdom',
+  transform: {
+    '^.+\\.(t|j)sx?$': 'ts-jest',
+  },
+  moduleNameMapper: {
+    '\\.(css|less|scss|sass)$': 'identity-obj-proxy',
+    '^@/(.*)$': '<rootDir>/$1',
+  },
+  setupFilesAfterEnv: ['<rootDir>/setupTests.ts'],
+  testPathIgnorePatterns: ['/node_modules/', '/.next/'],
+  preset: 'ts-jest',
+  globals: {
+    'ts-jest': {
+      tsconfig: {
+        jsx: 'react-jsx',
+      },
+    },
+  },
+}

package.json

@@ -6,7 +6,8 @@
     "dev": "next dev",
     "build": "next build",
     "start": "next start",
-    "lint": "next lint"
+    "lint": "next lint",
+    "test": "jest --coverage"
   },
   "engines": {
     "node": "22.x"