fix(playwright): auto-install Playwright browsers via prepare script (#1041)

Author: jycouet

.changeset/public-bobcats-open.md

@@ -0,0 +1,5 @@
+---
+'sv': patch
+---
+
+fix(playwright): auto-install Playwright browsers via `prepare` script

packages/sv/src/addons/playwright.ts

@@ -14,6 +14,7 @@ export default defineAddon({
 		sv.file(
 			file.package,
 			transforms.json(({ data, json }) => {
+				json.packageScriptsUpsert(data, 'prepare', 'playwright install', { mode: 'prepend' });
 				json.packageScriptsUpsert(data, 'test:e2e', 'playwright test');
 				json.packageScriptsUpsert(data, 'test', 'npm run test:e2e');
 			})

packages/sv/src/cli/tests/snapshots/create-with-all-addons/package.json

@@ -7,7 +7,7 @@
 		"dev": "vite dev",
 		"build": "vite build",
 		"preview": "vite preview",
-		"prepare": "svelte-kit sync || echo ''",
+		"prepare": "playwright install && svelte-kit sync || echo ''",
 		"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
 		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
 		"lint": "prettier --check . && eslint .",