add external config to codebase

cli/conf.ts

@@ -33,6 +33,7 @@ export interface Codebase {
     to: string;
   }[];
   customBundler?: string;
+  external?: string[];
 }
 
 export async function readConfigFile(): Promise<SyncOptions> {

cli/script.ts

@@ -172,6 +172,7 @@ export async function handleFile(
           format: "cjs",
           bundle: true,
           write: false,
+          external: codebase.external,
           platform: "node",
           packages: "bundle",
           target: "node20.15.1",