fix(examples): replace CommonJS require.main guard with ESM equivalent

examples/agents/63-deploy.ts

@@ -13,6 +13,7 @@
  *   - CONDUCTOR_AGENT_LLM_MODEL=openai/gpt-4o-mini as environment variable
  */
 
+import { pathToFileURL } from 'url';
 import { Agent, AgentRuntime, tool } from '@io-orkes/conductor-javascript/agents';
 import { llmModel } from './settings';
 
@@ -91,8 +92,9 @@ async function main() {
 }
 
 // Guard: 63c-run-by-name.ts imports docAssistant from this file — only run
-// when executed directly, not on import.
-if (require.main === module) {
+// when executed directly, not on import. (ESM equivalent of
+// `require.main === module`, which does not exist in ES module scope.)
+if (process.argv[1] && import.meta.url === pathToFileURL(process.argv[1]).href) {
   main().catch((err) => {
     console.error(err);
     process.exitCode = 1;

examples/agents/63d-serve-from-package.ts

@@ -14,6 +14,7 @@
  *   - CONDUCTOR_AGENT_LLM_MODEL=openai/gpt-4o-mini as environment variable
  */
 
+import { pathToFileURL } from 'url';
 import { Agent, AgentRuntime, tool } from '@io-orkes/conductor-javascript/agents';
 import { llmModel } from './settings';
 
@@ -63,8 +64,9 @@ async function main() {
 }
 
 // Guard: 63e-run-monitoring.ts imports monitoringAgent from this file — only
-// run when executed directly, not on import.
-if (require.main === module) {
+// run when executed directly, not on import. (ESM equivalent of
+// `require.main === module`, which does not exist in ES module scope.)
+if (process.argv[1] && import.meta.url === pathToFileURL(process.argv[1]).href) {
   main().catch((err) => {
     console.error(err);
     process.exitCode = 1;