tsconfig.json

{
  // Visit https://aka.ms/tsconfig to read more about this file
  "compilerOptions": {
    // Environment — a browser app bundled by Vite.
    "target": "esnext",
    "module": "ESNext",
    "moduleResolution": "bundler",
    "lib": ["ES2023", "DOM", "DOM.Iterable"],
    "jsx": "react-jsx",
    "useDefineForClassFields": true,

    // Vite transpiles; tsc is type-check only.
    "noEmit": true,
    "sourceMap": true,
    "isolatedModules": true,
    "moduleDetection": "force",
    "verbatimModuleSyntax": true,
    "noUncheckedSideEffectImports": true,
    "allowImportingTsExtensions": true,
    "skipLibCheck": true,
    "resolveJsonModule": true,

    // Path alias — `@/...` resolves to the Vite source root (./assets).
    // Paths resolve relative to this tsconfig (no baseUrl needed under
    // moduleResolution: "bundler").
    "paths": {
      "@/*": ["./assets/*"]
    },

    // Strict type checking.
    "strict": true,
    "noUncheckedIndexedAccess": true,
    "exactOptionalPropertyTypes": true
  },
  "include": ["assets", "vite.config.ts"]
}