🎨 Palette: [접근성 개선] 정적 요소의 불필요한 tabIndex 제거

[seonghobae]

💡 What:
frontend/src/erd/TableNode.tsx의 AccessibleTruncatedText 컴포넌트와 일부 정적 알림 문구("생략된 컬럼이 더 있습니다", "생략된 인덱스가 더 있습니다")에서 tabIndex={0} 속성을 제거했습니다.

🎯 Why:
단순히 title이나 aria-label을 키보드 사용자에게 노출시키기 위해 비상호작용적(static) 요소에 tabIndex={0}를 추가하는 것은 접근성 안티패턴입니다. 이는 불필요하게 많은 탭 스톱을 생성하여 키보드로 네비게이션하는 사용자들의 경험을 크게 저하시킵니다.

📸 Before/After:

• Before: 테이블 내의 단순 컬럼 주석, 그룹 이름, 생략 표시(“… N more”) 등이 모두 탭 스톱으로 잡혀 탭 키 이동이 매우 비효율적이었습니다.
• After: 실제로 상호작용 가능한 요소들만 탭 스톱으로 잡히며, 부가적인 텍스트 정보는 스크린 리더가 DOM 탐색 시 자연스럽게 읽을 수 있도록 접근성 속성(aria-label, title)만 유지됩니다.

♿ Accessibility:

• 키보드 네비게이션 흐름 최적화 (불필요한 탭 스톱 제거)
• 비상호작용적 요소의 포커스 문제 해결

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PR created automatically by Jules for task 9858909559568915730 started by @seonghobae

[google-labs-jules]

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[opencode-agent]

OpenCode Review Overview

• Head SHA: 080dae446083cf5d8f0695296663ac1b5ebe86c4
• Workflow run: 28762386863
• Workflow attempt: 1
• Gate result: APPROVE (exit 0)

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file: palette.md"]
  S1 --> I1["repository behavior"]
  I1 --> R1["Review risk: Changed file: palette.md"]
  R1 --> V1["required checks"]
  Evidence --> S2["Frontend (2 files)"]
  S2 --> I2["browser runtime and bundle"]
  I2 --> R2["Review risk: Frontend (2 files)"]
  R2 --> V2["frontend tests"]

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[seonghobae]

Closing during org-wide PR backlog reduction. This looks like a low-priority automated maintenance PR (palette ux/a11y), while the repository has a large backlog of security, conflict, and required-workflow work. Reopen or recreate a fresh PR if this change is still needed.

[google-labs-jules]

Closing during org-wide PR backlog reduction. This looks like a low-priority automated maintenance PR (palette ux/a11y), while the repository has a large backlog of security, conflict, and required-workflow work. Reopen or recreate a fresh PR if this change is still needed.

Understood. Acknowledging that this work is now obsolete and stopping work on this task.