🎨 Palette: 스크롤 가능한 테이블 접근성 개선

[seonghobae]

💡 작업 내용 (What):
생성된 HTML 보고서의 테이블을 감싸는 .table-wrap 요소에 tabindex="0", role="region", aria-label 속성을 추가하고, 키보드로 요소에 접근 시 포커스 링이 보이도록 :focus-visible CSS를 추가했습니다. 또한, 이 발견을 바탕으로 접근성 학습 일지(.jules/palette.md)를 작성했습니다.

🎯 이유 (Why):
overflow-x: auto가 적용된 스크롤 가능한 컨테이너는 키보드만 사용하는 사용자(예: 시각 장애인 또는 마우스 사용이 불편한 사용자)가 화면 밖의 콘텐츠를 스크롤하여 볼 수 없게 만듭니다. 이를 해결하기 위해 포커스를 받을 수 있게 하고 스크린 리더가 컨텍스트를 이해할 수 있도록 의미적 태그와 라벨을 부여해야 합니다.

♿ 접근성 개선 사항 (Accessibility):

• 스크롤 가능한 테이블의 키보드 네비게이션 지원
• 스크린 리더용 지역 분리(role="region") 및 설명(aria-label) 추가
• 명확한 시각적 포커스 상태(Outline) 제공

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PR created automatically by Jules for task 16494223473979403972 started by @seonghobae

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[Copilot]

Pull request overview

Improves accessibility of generated HTML report tables by making horizontally scrollable table containers keyboard-focusable, semantically identifiable to assistive tech, and visibly focused when navigated via keyboard.

Changes:

• Pass the section heading into _table() so the wrapper can expose a descriptive accessible name.
• Add tabindex="0", role="region", and aria-label to the .table-wrap scroll container.
• Add a .table-wrap:focus-visible outline style (plus accompanying accessibility learning notes in .jules/palette.md).

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
python/fast_mlsirm/report.py	Makes scrollable table wrappers focusable and labeled for screen readers; adds focus outline styling.
.jules/palette.md	Documents the accessibility learning and the chosen implementation pattern.

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[github-actions]

Pull request overview

OpenCode reviewed the current-head evidence but found unresolved reviewer or review-agent threads before approval.

Findings

1. HIGH .github/workflows/opencode-review.yml:1 - Unresolved reviewer thread blocks automated approval

• Problem: OpenCode reached an APPROVE control result, but the approval step found unresolved, non-outdated human or review-agent thread evidence on the current pull request.
• Root cause: Reviewer and review-agent feedback can arrive after bounded model evidence is prepared, so the approval step must re-query GitHub immediately before publishing an approval.
• Fix: Address or resolve the listed reviewer thread(s), then re-run OpenCode on the current head.
• Regression test: Keep the approval gate querying reviewThreads(first: 100) after model output and before create_pull_review APPROVE, including bot review agents other than OpenCode itself.

Review thread evidence

Latest unresolved reviewer thread evidence

python/fast_mlsirm/report.py line 575

• Latest reviewer comment: @copilot-pull-request-reviewer at 2026-07-01T18:56:06Z

• Comment URL: #54 (comment)

• Comment excerpt: ':focus-visible' is great, but in browsers/environments that don't support it the focus outline won't show at all. Adding a ':focus' fallback (gated with '@supports selector(:focus-visible)') keeps the current behavior where supported while preserving a visible focus indicator elsewhere.

• Result: REQUEST_CHANGES

• Reason: unresolved reviewer or review-agent thread(s) were present before approval.

• Head SHA: 9636ebadd2b1fde1e6f156dbb3daeb5df04335a5

• Workflow run: 28540520832

• Workflow attempt: 1

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file (2 files)"]
  S1 --> I1["repository behavior"]
  I1 --> R1["Review risk: Changed file (2 files)"]
  R1 --> V1["required checks"]

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[github-actions]

OpenCode Review Overview

• Head SHA: 9636ebadd2b1fde1e6f156dbb3daeb5df04335a5
• Workflow run: 28540520832
• Workflow attempt: 1
• Gate result: REQUEST_CHANGES (approval step)

Pull request overview

OpenCode reviewed the current-head evidence but found unresolved reviewer or review-agent threads before approval.

Findings

1. HIGH .github/workflows/opencode-review.yml:1 - Unresolved reviewer thread blocks automated approval

• Problem: OpenCode reached an APPROVE control result, but the approval step found unresolved, non-outdated human or review-agent thread evidence on the current pull request.
• Root cause: Reviewer and review-agent feedback can arrive after bounded model evidence is prepared, so the approval step must re-query GitHub immediately before publishing an approval.
• Fix: Address or resolve the listed reviewer thread(s), then re-run OpenCode on the current head.
• Regression test: Keep the approval gate querying reviewThreads(first: 100) after model output and before create_pull_review APPROVE, including bot review agents other than OpenCode itself.

Review thread evidence

Latest unresolved reviewer thread evidence

python/fast_mlsirm/report.py line 575

• Latest reviewer comment: @copilot-pull-request-reviewer at 2026-07-01T18:56:06Z

• Comment URL: 🎨 Palette: 스크롤 가능한 테이블 접근성 개선 #54 (comment)

• Comment excerpt: ':focus-visible' is great, but in browsers/environments that don't support it the focus outline won't show at all. Adding a ':focus' fallback (gated with '@supports selector(:focus-visible)') keeps the current behavior where supported while preserving a visible focus indicator elsewhere.

• Result: REQUEST_CHANGES

• Reason: unresolved reviewer or review-agent thread(s) were present before approval.

• Head SHA: 9636ebadd2b1fde1e6f156dbb3daeb5df04335a5

• Workflow run: 28540520832

• Workflow attempt: 1

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file (2 files)"]
  S1 --> I1["repository behavior"]
  I1 --> R1["Review risk: Changed file (2 files)"]
  R1 --> V1["required checks"]

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