🎨 Palette: 숫자 입력 필드 공백 상태의 인라인 유효성 검사 초기화 및 이벤트 최적화

[seonghobae]

💡 What: target_bytes와 batch_target_bytes 입력 필드에서 값을 지웠을 때 커스텀 에러 상태가 초기화되도록 수정하고, 이벤트 리스너 외부로 DOM 쿼리 및 파싱 로직을 추출하여 캐싱했습니다.
🎯 Why: 사용자가 입력 필드를 모두 지워 빈칸으로 두었을 때 브라우저가 이전의 잘못된 상태(예: 음수)를 계속 기억하는 문제를 방지하여 기본 HTML5 required 동작이 원활히 이뤄지도록 하고, 빈번하게 실행되는 입력 이벤트의 성능을 개선하기 위함입니다.
📸 Before/After: 시각적으로는 빈칸일 때 에러 메시지가 유지되지 않도록 동작이 개선됨.
♿ Accessibility: aria-invalid 속성을 빈칸일 때 명시적으로 해제하여 스크린 리더가 빈칸을 오류 상태로 잘못 읽지 않게 개선하고, 프리셋 버튼의 aria-pressed 상태도 공백일 때 올바르게 초기화되도록 하였습니다.

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PR created automatically by Jules for task 13863820131660275528 started by @seonghobae

[google-labs-jules]

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[Copilot]

Pull request overview

This PR updates the FastAPI SaaS UI’s client-side validation behavior for the target_bytes and batch_target_bytes number inputs so that clearing the field resets any prior custom validation/error state, while also reducing per-input-event DOM querying by caching preset button lookups.

Changes:

• Reset setCustomValidity / aria-invalid (and preset aria-pressed state) when numeric inputs are cleared to blank.
• Cache preset button NodeLists and parsed preset byte values outside the input event handlers.
• Update UI snapshot-style assertions to reflect the new cached preset logic.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
saas_web.py	Resets inline validation state on empty input and caches preset DOM queries/parsing for the UI script.
tests/test_saas_web.py	Adjusts HTML assertions to match updated preset/validation JS emitted by the UI template.
.jules/palette.md	Replaced file contents with a single new Palette entry (removes previous entries).

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[seonghobae]

Closing as superseded by #353. The canonical branch is being rebuilt from the current main, keeps the already-merged upload-limit behavior intact, and adds handler-scoped regression coverage for clearing stale custom validity and aria-invalid state.

[google-labs-jules]

Closing as superseded by #353. The canonical branch is being rebuilt from the current main, keeps the already-merged upload-limit behavior intact, and adds handler-scoped regression coverage for clearing stale custom validity and aria-invalid state.

Understood. Acknowledging that this work is now superseded by #353 and stopping work on this task.