Value Statement

Add support for Google Cloud Pub/Sub as a transport layer in the CloudEvents implementation of sdk-go,This enables both the source and agent clients to send and receive CloudEvents via Pub/Sub, similar to existing transports such as gRPC or MQTT.

Definition of Done for Engineering Story Owner (Checklist)

• Implement a Pub/Sub driver for CloudEvents transport.
• Support both source and agent client modes.
• Add configuration options (e.g., project ID, topic, subscription).
• Include unit tests, integration tests and e2e tests
• Update documentation to describe how to configure and use the Pub/Sub transport.

Development Complete

• The code is complete.
• Functionality is working.
• Any required downstream Docker file changes are made.

Tests Automated

• [ ] Unit/function tests have been automated and incorporated into the
  build.
• [ ] 100% automated unit/function test coverage for new or changed APIs.

Secure Design

• [ ] Security has been assessed and incorporated into your threat model.

Multidisciplinary Teams Readiness

• [ ] Create an informative documentation issue using the Customer

Portal Doc template that you can access from [The Playbook](

https://docs.google.com/document/d/1YTqpZRH54Bnn4WJ2nZmjaCoiRtqmrc2w6DdQxe_yLZ8/edit#heading=h.9fvyr2rdriby),

and ensure doc acceptance criteria is met.

• Call out this sentence as it's own action:

• [ ] Link the development issue to the doc issue.

Support Readiness

• [ ] The must-gather script has been updated.