Test fix coverage

Author: javve

vitest.config.js

@@ -2,10 +2,10 @@ import { defineConfig } from 'vitest/config'
 
 export default defineConfig({
   test: {
-    environment: 'jsdom', // <-- detta är det viktiga!
+    environment: 'jsdom',
     globals: true,
     coverage: {
-      reporter: ['text', 'lcov', 'html'],
+      reporter: ['text', 'lcov', 'html', 'json'],
       reportsDirectory: './coverage',
       include: ['src/**'],
     },