Add session_id to Langfuse traces

[amed-xyz]

Summary

Add Goose sessions to Langfuse traces https://langfuse.com/docs/observability/features/sessions

Type of Change

• [x] Feature
• [ ] Bug fix
• [ ] Refactor / Code quality
• [ ] Performance improvement
• [ ] Documentation
• [ ] Tests
• [ ] Security fix
• [ ] Build / Release
• [ ] Other (specify below)

[github-actions[bot]]

This pull request has been automatically marked as stale because it has not had recent activity for 23 days.

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• If no further activity occurs, this PR will be automatically closed in 7 days
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• If you believe this PR was marked as stale in error, please comment and we'll review it

Thank you for your contribution! 🚀

[zanesq]

@amed-xyz still in progress?

[amed-xyz]

@zanesq thanks for the heads up, I'll close this one for now as I'm unsure about its value