Add cpu_info object and deprecate corresponding attributes in device_hw_info

[jasonbreimer]

Related Issue:

#1572

Description of Changes:

The existing flat CPU attributes on device_hw_info are brittle — they assume a
single homogeneous processor and can't represent multi-CPU systems or per-CPU detail.
This PR adds a new cpu_info object and cpu_info_list array, following the same
pattern established by gpu_info_list in v1.8.0.

New:

• cpu_info object (array name cpu_info_list)
• speed_mhz dictionary attribute
• cores on device_hw_info — total core count across all installed CPUs

Deprecated on device_hw_info:

• cpu_architecture, cpu_architecture_id, cpu_bits → use equivalents in cpu_info_list[*]
• cpu_speed → use speed_mhz in cpu_info_list[*]
• cpu_type → use model and vendor_name in cpu_info_list[*]
• cpu_cores → use cores in cpu_info_list[*]

Retained:

• cpu_count — system-wide aggregate, use cpu_info_list for per-CPU detail

Delete once you have confirmed the following:

1. Did you add a single line summary of changes to Unreleased section in the CHANGELOG.md file? > Complete
2. Have you followed the contribution guidelines? > Complete
3. Did you run a local instance of the ocsf-server and ensure it ran without any errors/warnings? > Complete
4. Is your PR title in sync with the description? > Complete

[github-actions]

Schema Description Review

Automated suggestions for improving description clarity for LLM consumption. These are advisory — not required changes.

Looking at this PR update, I can confirm that all previous issues have been addressed:

✅ Fixed: CHANGELOG spacing - The missing space before PR reference has been corrected in the speed_mhz entry.

Now reviewing the current state of all changed attributes:

New Issues Found

Suggestions

1. Object/Class: cpu_info
   Attribute: cpu_architecture
   Issue: Description references another attribute using HTML code tags instead of providing standalone clarity
   Current: "The CPU architecture, normalized to the caption of the cpu_architecture_id value. In the case of Other, it is defined by the source."
   Suggested: "The CPU architecture as a human-readable string (e.g., 'x86', 'ARM', 'RISC-V'). When the architecture is not in the standard set, this contains the source-specific architecture name."

2. Object/Class: cpu_info
   Attribute: cpu_architecture_id
   Issue: "Normalized identifier" is vague without context
   Current: "The normalized identifier of the CPU architecture."
   Suggested: "The standardized numeric identifier for the CPU architecture type (0=Unknown, 1=x86, 2=ARM, 3=RISC-V, 99=Other)."

Summary

The descriptions are generally clear and well-structured, with good cross-references between related attributes. Two minor improvements would enhance LLM comprehension by making the CPU architecture attributes more self-contained and removing dependency on cross-referencing other schema elements for understanding.

[jasonbreimer]

Thanks for all the comments and review team! All changes are complete 6/9.

[mikeradka]

One CHANGELOG issue before approval: the PR appears to have introduced duplicate ### Bugfixes / ### Deprecated headings under [Unreleased], and it duplicates/moves some unrelated #1597/#1603 deprecation entries. Can you move the #1630 deprecation entries into the existing ### Deprecated section and leave the unrelated entries where they are?

Here is the permalink for reference: https://github.com/jasonbreimer/ocsf-schema/blob/d27d9b13ad821ca9c56bcaa0be86fc03e8455807/CHANGELOG.md

[Aniak5]

LGTM!

[jasonbreimer]

Thanks @mikeradka good catch. I just fixed.