feat: Upgrade Next.js and React, configure standalone output, adjust API route runtimes, and add application icon.

package.json

@@ -14,19 +14,18 @@
     "@dnd-kit/utilities": "^3.2.2",
     "@vercel/analytics": "^1.5.0",
     "hls.js": "^1.6.15",
-    "next": "15.1.0",
-    "react": "19.0.0",
-    "react-dom": "19.0.0",
+    "next": "16.0.5",
+    "react": "19.2.0",
+    "react-dom": "19.2.0",
     "zustand": "^5.0.8"
   },
   "devDependencies": {
-    "@cloudflare/next-on-pages": "^1.13.16",
     "@tailwindcss/postcss": "^4",
     "@types/node": "^24",
     "@types/react": "^19",
     "@types/react-dom": "^19",
     "eslint": "^9",
-    "eslint-config-next": "15.1.0",
+    "eslint-config-next": "16.0.5",
     "postcss": "^8.5.6",
     "tailwindcss": "^4",
     "typescript": "^5"