chore: generate sdk into packages/sdk

packages/sdk/scripts/utils/fix-index-exports.cjs

@@ -0,0 +1,17 @@
+const fs = require('fs');
+const path = require('path');
+
+const indexJs =
+  process.env['DIST_PATH'] ?
+    path.resolve(process.env['DIST_PATH'], 'index.js')
+  : path.resolve(__dirname, '..', '..', 'dist', 'index.js');
+
+let before = fs.readFileSync(indexJs, 'utf8');
+let after = before.replace(
+  /^(\s*Object\.defineProperty\s*\(exports,\s*["']__esModule["'].+)$/m,
+  `exports = module.exports = function (...args) {
+    return new exports.default(...args)
+  }
+  $1`.replace(/^  /gm, ''),
+);
+fs.writeFileSync(indexJs, after, 'utf8');