feat: test coverage of ComboControl and CheckboxFilter

vitest.config.component.ts

@@ -1,4 +1,5 @@
 import { svelte } from '@sveltejs/vite-plugin-svelte';
+import { playwright } from '@vitest/browser-playwright';
 import path from 'node:path';
 import { defineConfig } from 'vitest/config';
 
@@ -6,8 +7,7 @@ export default defineConfig({
     plugins: [svelte()],
 
     test: {
-        name: 'component',
-        environment: 'jsdom',
+        name: 'component-browser',
         include: ['src/**/*.svelte.test.ts', 'src/**/*.svelte.test.js'],
         exclude: [
             'node_modules',
@@ -21,6 +21,15 @@ export default defineConfig({
         restoreMocks: true,
         setupFiles: ['./vitest.setup.component.ts'],
         globals: false,
+        // Use browser environment with Playwright for Svelte 5 support
+        browser: {
+            enabled: true,
+            headless: true,
+            provider: playwright(),
+            instances: [{ browser: 'chromium' }],
+            screenshotFailures: true,
+            screenshotDirectory: '.playwright/screenshots',
+        },
     },
 
     resolve: {