Bind server to 0.0.0.0 for container/cloud compatibility

[Copilot]

Server was binding to localhost/127.0.0.1, preventing external connections in containerized environments and app service deployments.

Changes

• Line 340: Changed run_app() host parameter from "localhost" to "0.0.0.0"

  • Enables connections from any network interface
  • Required for Docker, Kubernetes, Azure App Service

• Line 335: Updated console output to reflect binding behavior

  # Before
  print(f"🚀 Server: localhost:{port}")
  
  # After  
  print(f"🚀 Server: Listening on 0.0.0.0:{port} (all interfaces)")

Notes

Socket connection check (line 328) correctly remains at 127.0.0.1 - connecting to 0.0.0.0 is invalid. Endpoint URLs in console output remain localhost for local testing UX.

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[Copilot]

Pull request overview

Updates the Python sample agent host to bind the web server to all interfaces to support external connectivity in containers and cloud app hosting.

Changes:

• Changed the aiohttp server bind host from localhost to 0.0.0.0.
• Updated the startup console banner to reflect that the server is listening on all interfaces.