docs(pipeline): record the completed real-data inspector epic (#371)

[Ravenwater]

Summary

Updates the Engineering Status page to reflect that epic #371 (per-stage real-data inspectors) is complete.

Changes

• docs-site/.../pipeline/engineering-status.mdx:
  • Diagnostic program section — note that, alongside the synthetic probes (the CI gate), each implemented stage now has a real-data inspector that re-runs the shipped operator on real EuRoC across the three renderer tiers (image-domain / 3-D / filter-internal). Lists the 9 built (S0, S4, S5, S6, S1, S2, S3, S9, S10) and the 2 deferred (S7, S8 — optional layers not in the filter).
  • Tracking index — added the epic (epic(tools): VIO stage inspectors — real-data, trace-tapped, per-stage inspect & visualize utilities #371, complete), per the page's single-sourced issue-reference convention.

Test plan

• Fast CI passes (docs-site build + commitlint)
• Promote to ready when satisfied

Relates to #371

🤖 Generated with Claude Code

Summary by CodeRabbit

• Documentation
  • Updated diagnostic program documentation to describe the real-data inspector capability, which allows stage operators to re-run on actual data with visualization through image overlays, 3D viewer, and internal figures.
  • Added tracking index entry for real-data stage inspectors.

[coderabbitai]

Caution

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📥 Commits

Reviewing files that changed from the base of the PR and between 23388b9 and ce7d05b.

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• docs-site/src/content/docs/pipeline/engineering-status.mdx

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Walkthrough

Adds a description of real-data stage inspectors to the diagnostic program section of the pipeline engineering-status doc. Each implemented stage can re-run its shipped operator on a real EuRoC sequence, producing image overlays, 3D viewer output, and filter-internal figures. The tracking index table gains a new row for "Real-data stage inspectors (epic — complete)" linked to Issue #371.

Changes

Engineering Status Documentation

Layer / File(s)	Summary
Real-data inspector description and tracking index entry docs-site/src/content/docs/pipeline/engineering-status.mdx	Adds prose describing real-data inspectors (EuRoC re-run, output tiers: image overlays, 3D viewer, filter-internal figures; notes which stages are not built by default), and extends the tracking index table with a new row for "Real-data stage inspectors (epic — complete)" linking to Issue #371.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• branes-ai/cortex#305: Created and structured the same engineering-status.mdx page and its centralized issue tracking index that this PR extends with the new real-data inspector row.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/epic-371-inspectors-status

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