message: fix(preset-umi): add devTool local mode with env DEVTOOL_LOCAL
diff: @@ -23,7 +23,7 @@ export default (api: IApi) => {
  }
  // static
  - if (path.startsWith('/__umi/')) {
  + if (!process.env.DEVTOOL_LOCAL && path.startsWith('/__umi/')) {
  const shortPath = path.replace('/__umi/', '');
  if (shortPath !== '' && existsSync(join(devToolAppDist, shortPath))) {
  return res.sendFile(join(devToolAppDist, shortPath));
  