feat: add corebuild worker

ts/index.ts

@@ -0,0 +1,10 @@
+import { CoreBuildServer } from './classes.corebuildserver.js';
+
+export * from './classes.corebuildserver.js';
+export * from './classes.baseosimagebuilder.js';
+export * from './types.js';
+
+if (import.meta.url === `file://${process.argv[1]}`) {
+  const server = CoreBuildServer.fromEnv();
+  await server.start();
+}