Updated FirstRunSetup to show generic container commands that work
across different orchestration platforms:
- Use <container-name> placeholder instead of hardcoded "pulse"
- Add kubectl exec example for Kubernetes/Helm deployments
- Clarify "From container host" applies to Docker, Podman, etc.
This ensures the instructions work for Docker Compose, Swarm, Helm,
and any other container orchestrator where the container might have
a different name.
999e598e44