```js
// .storybook/main.js

const TsconfigPathsPlugin = require('tsconfig-paths-webpack-plugin');

module.exports = {
  webpackFinal: async (config) => {
    config.resolve.plugins = [
      ...(config.resolve.plugins || []),
      new TsconfigPathsPlugin({
        extensions: config.resolve.extensions,
      }),
    ];
    return config;
  },
};
```