feat(reports): leftover-map item coverage on grouping comparison graphic (v2.64.0)

[seonghobae]

Summary

Caption persisted leftover-map item complete-case coverage on the grouping-comparison leftover-map graphic when leftoverMapItemCoverageCounts returns usable integers (ADR 0307 / v2.64.0). Post and item coverage omit independently. No SQL/new columns; never infer item coverage from marker/pair counts or other leftover-map statistics.

Live authority

• parent/base: #845@8d37896a5246cd0045a9c210b504b95941a78f84
• current product head: e80832830fed438451e9f2785b7a75b2fd1745a6
• compare from parent: ahead 4, behind 0
• PR: open / Draft

Parent convergence

#846 first inherited tests/test_compare_graphic_adr_status.py as 63b3e7d610776a60900e7528912d57038e2890de. GitHub then produced current-parent merge 595e929a94278928a953d0cf31be9886fd156d10 with exact parents #845@8d37896... and #846@63b3e7d...; that GitHub-verified tree preserved ADR 0307/v2.64.0 while keeping ADR 0304 Proposed and its regression. The same tree was recorded as child-first two-parent commit e8083283..., and the product branch moved by non-force fast-forward only.

Historical 470-test/oxlint/py_compile evidence predates this exact head and is not transferred. Exact-head required/frontend/browser/a11y and PostgreSQL/k6 evidence plus independent approval remain outstanding. Direct descendant #848 must be reconstructed against this head before predecessor evidence can transfer.

Product invariants

• Missing/invalid item coverage omits only the comparison graphic item-coverage caption.
• Post and item coverage omit independently; 0 of M is valid when stored counts satisfy the contract.
• Existing axis-share and post-coverage display remain independent.
• This increment does not add incomplete coverage captions.

Keep Draft until exact-head evidence and independent approval exist. No self-approval, gate bypass, force push, or destructive rebase.

[coderabbitai]

Important

Draft PR not reviewed

Draft PRs are not automatically reviewed by default.

• Trigger a manual review

To automatically review draft PRs, update your CodeRabbit configuration:

reviews:
  auto_review:
    drafts: true

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[seonghobae]

Write probe after open. Independent APPROVE is required. This comment is not a review. The only repository collaborator is seonghobae, so an independent reviewer cannot be requested this cycle. Copilot/Devin COMMENT is not independent APPROVE. Leave open. Do not squash-merge onto the unprotected leftover base. Do not self-approve. After independent review, retarget onto leftover-coordinates (#782) rather than squash-merging here.

[devin-ai-integration]

Devin Review found 2 potential issues.

[devin-ai-integration]

📝 Info: Coverage validation remains independent

leftoverMapCoverageCounts and leftoverMapItemCoverageCounts validate separate fields. A malformed count suppresses only its own comparison-graphic caption.

(Refers to this code)

---

Was this helpful? React with 👍 or 👎 to provide feedback.

[devin-ai-integration]

📝 Info: Captions cannot outlive the graphic

layoutLeftoverMapPlot gates the entire figure before coverage rendering. Missing plottable coordinates omit both the comparison graphic and its item caption.

(Refers to this code)

---

Was this helpful? React with 👍 or 👎 to provide feedback.

[seonghobae]

Stacked next increment opened as leftover-map incomplete post coverage on the grouping comparison leftover-map graphic (ADR 0308 / v2.65.0) on feat/leftover-map-compare-plot-incomplete-post-v2650 @ 6707725. Distinct accessible name Leftover map comparison graphic incomplete posts. Leave #846 and the stacked increment open for independent review. Do not squash-merge. This comment is not a review.