chore: dependências e teste de ponta a ponta

Saem gsap, motion, clsx e tailwind-merge; entram server-only, @playwright/test e @axe-core/playwright. Suíte e2e (rotas, axe, teclado, navegação, sem JS, rolagem) rodável com pnpm test:e2e contra BASE_URL.

package.json

@@ -26,24 +26,24 @@
     "format": "biome format --write",
     "test": "jest",
     "test:watch": "jest --watch",
+    "test:e2e": "playwright test",
     "check:projects": "node scripts/check-projects.mjs"
   },
   "dependencies": {
     "@react-three/drei": "10.7.7",
     "@react-three/fiber": "9.5.0",
-    "clsx": "2.1.1",
-    "gsap": "3.13.0",
     "lenis": "^1.3.26",
     "lucide-react": "0.542.0",
-    "motion": "12.23.12",
     "next": "16.3.8",
     "react": "19.1.0",
     "react-dom": "19.1.0",
-    "tailwind-merge": "3.3.1",
+    "server-only": "0.0.1",
     "three": "0.182.0"
   },
   "devDependencies": {
+    "@axe-core/playwright": "^4.13.0",
     "@biomejs/biome": "2.2.0",
+    "@playwright/test": "^1.64.1",
     "@tailwindcss/postcss": "4.1.12",
     "@testing-library/jest-dom": "6.9.1",
     "@testing-library/react": "16.3.2",