feat(sdk): extend cli job logs for streaming and filtering

[tejapulagam]

Summary

Extends lightning job logs to work with running jobs and adds:

• Snapshot logs available so far
• Live streaming with --follow / -f
• --tail, --rank, and --timestamps
• Clean shutdown when the job finishes or the user presses Ctrl-C

Example usage

lightning job logs my-job
lightning job logs my-job --tail 10
lightning job logs my-job --follow
lightning job logs my-job -f --tail 10 --timestamps
lightning job logs my-job -f --rank 2