Scaffold playwright

package.json

@@ -11,6 +11,8 @@
     "check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
     "check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
     "lint": "prettier --check src && eslint src",
+    "test": "playwright test",
+    "test:ui": "playwright test --ui",
     "format": "git diff head --name-only --diff-filter d | grep -E '(js|ts|svelte|css)$' | xargs -r prettier --write",
     "format:all": "prettier --write src",
     "prepare": "husky"
@@ -18,6 +20,7 @@
   "devDependencies": {
     "@capacitor/assets": "^3.0.5",
     "@eslint/js": "^9.39.2",
+    "@playwright/test": "^1.49.1",
     "@sveltejs/kit": "^2.61.1",
     "@sveltejs/vite-plugin-svelte": "^5.1.1",
     "@tailwindcss/postcss": "^4.2.2",