[WIP] Fix issues with PR #51 after merged squash

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

i dont know how pr #51 got through but it got squashed and merged with multiple failures in checks and tests

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[devin-ai-integration]

Closing as stale (Stage D housekeeping).

This Copilot draft has been open without progress and is superseded by:

• PR PR #139: Universal Aerospace Floor + 35 Polymath Domains + Standards + Upgrades #139 (Universal Aerospace Floor + 35 polymath domains) — landed 2026-04-18
• PR Kimi/pr139 aerospace floor polymath domains #140 (Kimi aerospace-floor polymath follow-up) — landed 2026-04-19
• PR audit(stage-a): hashed investigative taxonomy + gap-analysis JSONL #141 (hashed investigative taxonomy) — landed 2026-04-19
• PR cleanup(stage-b): eliminate float() calls and stubs in production code #142 (production-code cleanup: float() / stubs) — landed 2026-04-19
• PR stage-c: enforce YAML frontmatter on all Markdown files #143 (Markdown frontmatter enforcement) — in review

If the underlying work here is still wanted, re-open a fresh PR rebased on current main; the old branches have substantial drift and CI has moved on. Closing now so the open-PR list reflects reality.