Add booking checkout and webhook coverage

package.json

@@ -7,6 +7,7 @@
     "build": "next build",
     "start": "node .next/standalone/server.js",
     "lint": "eslint .",
+    "test": "vitest run",
     "test:e2e": "playwright test",
     "prisma:generate": "prisma generate",
     "prisma:migrate:dev": "prisma migrate dev",
@@ -22,14 +23,18 @@
   },
   "devDependencies": {
     "@playwright/test": "^1.60.0",
+    "@testing-library/jest-dom": "^6.9.1",
+    "@testing-library/react": "^16.3.2",
     "@types/node": "20.17.6",
     "@types/react": "19.2.14",
     "@types/react-dom": "^19",
     "eslint": "^9",
     "eslint-config-next": "15.0.0",
+    "jsdom": "^25.0.1",
     "prisma": "^6.10.1",
     "sass": "^1.89.2",
     "tsx": "^4.20.3",
-    "typescript": "5.9.3"
+    "typescript": "5.9.3",
+    "vitest": "^2.1.8"
   }
 }