fix: for codebase bundle, use cjs exports instead

cli/script.ts

@@ -157,22 +157,12 @@ export async function handleFile(
       log.info(`Starting building the bundle for ${path}`);
       const out = await esbuild.build({
         entryPoints: [path],
-        format: "esm",
+        format: "cjs",
         bundle: true,
         write: false,
         platform: "node",
         packages: "bundle",
         target: "node20.15.1",
-        banner: {
-          js: `
-  import { createRequire } from 'module';           
-  import { dirname } from 'path';
-  import { fileURLToPath } from 'url';
-  
-  const require = createRequire(import.meta.url); 
-  const __filename = fileURLToPath(import.meta.url);
-  const __dirname = dirname(__filename);`,
-        },
       });
       bundleContent = out.outputFiles[0].text;
       log.info(`Finished building the bundle for ${path}`);