a11y(dashboard): retire superseded new-tab announcement lane

[seonghobae]

Fleet disposition

Closed only under the verified-successor exception.

Open Draft #1201 now carries the valid intent more completely at exact head 95c25d01c70f32fb644c640d4d27d795ea9b0979: reference links that already use target="_blank" retain their visible URL identity, gain a visible external-link indicator, and reference one assistive new-tab description while the decorative SVG stays out of the accessibility tree. #1201 also adds structural regression coverage for the link/description/SVG contract. This predecessor's feature-local .jules/palette.md generalization is not authoritative product delta and is not transferred.

The successor is not promoted by this closure. Its hard-coded English assistive description remains incompatible with claiming the fleet's KO/EN/JA/ZH/VI/ES/DE/FR localization acceptance, and static parsing is not real browser/AT evidence. #1201 therefore remains Draft until the product's canonical versioned translation-resource boundary owns that screen key, locale expansion/fallback is verified, and current-head browser accessibility-tree/keyboard/responsive evidence plus hosted gates and independent review are terminally acceptable.

No predecessor checks/reviews are transferred. No force push, destructive rebase, self-approval, gate weakening, scanner suppression, synthetic status, or source-neutral retrigger.

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: fd7d8320-c116-418c-b0d2-97679248ea3f

📥 Commits

Reviewing files that changed from the base of the PR and between e71d37e and 86fbdf6.

📒 Files selected for processing (2)

• .jules/palette.md
• scanner/dashboard/index.html

Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review.

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📝 Walkthrough

Walkthrough

참조 링크의 target="_blank" 동작을 화면 판독기 사용자에게 알리는 aria-label을 추가했습니다. 동일한 접근성 처리 지침을 학습 문서에 기록했습니다.

Changes

접근성 링크 안내

Layer / File(s)	Summary
새 탭 링크 접근성 적용 .jules/palette.md, scanner/dashboard/index.html	참조 링크에 새 탭 열림을 알리는 aria-label을 추가했습니다. target="_blank" 링크에 접근성 안내를 제공하는 방법을 문서화했습니다.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~5 minutes

Merge Risk: ⚪ Minimal · up to fbed9

Dashboard reference links that open in a new tab now announce that context change to screen-reader users, with no visual or behavioral change. No current merge-blocking risk remains.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	제목은 새 탭으로 열리는 참조 링크에 접근성 안내를 추가하는 주요 변경 사항을 정확하고 간결하게 설명합니다.

✨ Finishing Touches 💡 1

🛠️ Fix failing CI checks 💡

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch palette-external-link-a11y-5550279877693930799

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