Add base tests

package.json

@@ -7,7 +7,11 @@
     "postinstall": "npx prisma generate --no-engine",
     "build": "npx prisma migrate deploy && next build",
     "start": "next start",
-    "lint": "next lint"
+    "lint": "next lint",
+    "test": "jest",
+    "test:watch": "jest --watch",
+    "test:coverage": "jest --coverage",
+    "test:update": "jest --updateSnapshot"
   },
   "dependencies": {
     "@auth/prisma-adapter": "^2.10.0",
@@ -48,11 +52,18 @@
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3",
+    "@testing-library/jest-dom": "^6.6.4",
+    "@testing-library/react": "^16.3.0",
+    "@testing-library/user-event": "^14.6.1",
+    "@types/jest": "^30.0.0",
     "@types/node": "^20",
     "@types/react": "^19",
     "@types/react-dom": "^19",
+    "@types/testing-library__jest-dom": "^6.0.0",
     "eslint": "^9",
     "eslint-config-next": "15.1.7",
+    "jest": "^30.0.5",
+    "jest-environment-jsdom": "^30.0.5",
     "postcss": "^8",
     "prisma": "^6.13.0",
     "tailwindcss": "^3.4.1",