Stabilize runtime auth and E2E coverage

apps/web/package.json

@@ -9,17 +9,27 @@
     "build": "tsc -b && vite build",
     "preview": "vite preview",
     "typecheck": "tsc -b",
-    "lint": "tsc -b"
+    "lint": "tsc -b",
+    "e2e": "playwright test",
+    "e2e:headed": "playwright test --headed",
+    "e2e:ui": "playwright test --ui"
   },
   "dependencies": {
+    "pixi-live2d-display": "^0.4.0",
+    "pixi.js": "^6.5.10",
     "react": "^19.1.0",
     "react-dom": "^19.1.0",
     "react-router-dom": "^6.30.1"
   },
+  "overrides": {
+    "gh-pages": "^6.3.0"
+  },
   "devDependencies": {
+    "@playwright/test": "^1.61.1",
     "@types/react": "^19.1.8",
     "@types/react-dom": "^19.1.6",
     "@vitejs/plugin-react": "^4.6.0",
+    "puppeteer-core": "^25.2.1",
     "typescript": "^5.8.3",
     "vite": "^6.3.5"
   }