Treat "React is declared but its value is never read" as error instead of just warning

[imam-syafi]

Tried this setup on newly scaffolded React 19 project with Rsbuild, can I treat unused import React statement as error instead of just warning? Even running eslint --cache --fix . can't automatically fix it.

Here's my config files.

eslint.config.mjs

import antfu from "@antfu/eslint-config";

export default antfu(
  {
    formatters: true,
    react: true,
    isInEditor: false,
    stylistic: {
      quotes: "double",
      semi: true,
    },
  },
);

tsconfig.json

{
  "compilerOptions": {
    "target": "ES2020",
    "jsx": "react-jsx",
    "lib": ["DOM", "ES2020"],
    "useDefineForClassFields": true,

    /* modules */
    "module": "ESNext",
    "moduleResolution": "Bundler",
    "paths": {
      "~/*": ["./src/*"]
    },
    "resolveJsonModule": true,
    "allowImportingTsExtensions": true,

    /* type checking */
    "strict": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "noEmit": true,
    "isolatedModules": true,
    "skipLibCheck": true
  },
  "include": ["src"]
}

Did I miss something?