fix(build-binaries): prevent test imports from triggering binary builds

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

script/build-binaries.ts

@@ -101,7 +101,9 @@ async function main() {
   console.log("\n✅ All platform binaries built successfully!\n");
 }
 
-main().catch((error) => {
+if (import.meta.main) {
+  main().catch((error) => {
     console.error("Fatal error:", error);
     process.exit(1);
-});
+  });
+}