Image build logs have different names in BYOC vs Playground

[lionello]

In playground, image builds can be seen using defang tail -n service1-image, but in BYOC it's defang tail -n kaniko. This is inconsistent.

BYOC should use he same naming as playground.

[lionello]

Blocked by #426

[jordanstephens]

Some notes on what needs to be done here after #426 is fixed

• [ ] Update the CLI to add a --build flag to the tail command which will let you get the build logs for a list of services: defang tail --build -n service-name
• [ ] Exclude build logs from defang tail by default.
• Implement build log partitioning for each platform:
  • [ ] BYOC DO: DigitalOcean already partitions build logs from runtime logs
  • [ ] BYOC AWS: Use AWS LogGroups
    • Build logs:
      • Tail from defang-cd-LogGroup-randomid and Defang/project-name/beta/builds
        • How can we find that defang-cd-LogGroup-*? I think we can find log groups by prefix.
    • Runtime logs:
      • Tail /Defang/project-name/beta/logs.
  • [ ] Playground (filtering happens in fabric)
    • Build logs:
      • Use the Loki Labels job=pulumi or job=kaniko. (Do not include job=ecs_status).
    • Runtime logs:
      • Use the Loki Labels job=service.