feat(test): add an e2e test

package.json

@@ -15,9 +15,14 @@
 		"build:linux": "tsc && vite build && electron-builder --linux",
 		"test": "vitest --run",
 		"test:watch": "vitest",
+		"build-vite": "tsc && vite build",
+		"test:e2e": "playwright test",
 		"prepare": "husky"
 	},
 	"dependencies": {
+		"@ffmpeg/core": "^0.12.10",
+		"@ffmpeg/ffmpeg": "^0.12.15",
+		"@ffmpeg/util": "^0.12.2",
 		"@fix-webm-duration/fix": "^1.0.1",
 		"@pixi/filter-drop-shadow": "^5.2.0",
 		"@radix-ui/react-accordion": "^1.2.12",
@@ -60,6 +65,7 @@
 	},
 	"devDependencies": {
 		"@biomejs/biome": "^2.3.13",
+		"@playwright/test": "^1.58.2",
 		"@types/node": "^25.0.3",
 		"@types/react": "^18.2.64",
 		"@types/react-dom": "^18.2.21",