Host metrics upgrade

[ThetaSinner]

Summary

TODO:

• All code changes are reflected in docs, including module-level docs
• All new/edited/removed scenarios are reflected in summary visualiser tool (see checklist)
• I ran the Nomad CI workflow successfully on my branch

Note that all commits in a PR must follow Conventional Commits before it can be merged, as these are used to generate the changelog

[github-actions]

The following will be added to the changelog

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[0.6.1] - 2026-02-13

Features

• Scripts to help capture updated content
• Re-work of host metrics to prioritize critical insights
• Report host metrics in parallel with scenario metrics

Bug Fixes

• Busy loops in mixed_arc_must_get_agent_activity and write_validated_must_get_agent_activity.

[coderabbitai]

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch host-metrics-upgrade

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[cocogitto-bot]

✔️ 5ee0378...a41f347 - Conventional commits check succeeded.