🎨 Palette: 입력 필드가 비어있을 때 숫자 유효성 검사 초기화

[seonghobae]

• 💡 What: 숫자 입력 필드가 비어 있을 때 오류 메시지와 붉은 테두리 스타일(aria-invalid="true")이 초기화되도록 스크립트를 수정했습니다.
• 🎯 Why: 사용자가 잘못된 값을 입력한 후 필드를 완전히 지웠을 때 시각적으로나 접근성 측면에서 여전히 오류 상태로 남아있는 문제를 해결하여 더 나은 사용자 경험을 제공하기 위함입니다.
• 📸 Before/After: 수정 전에는 텍스트는 지워져도 에러 상태가 남았으나, 수정 후에는 상태가 초기화됩니다.
• ♿ Accessibility: 값이 없을 때 aria-invalid 속성과 사용자 지정 유효성 검사 상태를 초기화하여 화면 판독기가 부정확한 상태를 읽지 않게 만들었습니다.

---

PR created automatically by Jules for task 5076865064330229252 started by @seonghobae

[google-labs-jules]

👋 Jules, reporting for duty! I'm here to lend a hand with this pull request.

When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down.

I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job!

For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with @jules. You can find this option in the Pull Request section of your global Jules UI settings. You can always switch back!

New to Jules? Learn more at jules.google/docs.

---

For security, I will only act on instructions from the user who triggered this task.

[Copilot]

Pull request overview

This PR improves the FastAPI UI’s client-side numeric validation so that when a user fully clears a numeric input, the previously-set error state (custom validity + aria-invalid) is properly reset. This aligns the web UI behavior with the accessibility goal of not leaving screen readers and users stuck in an incorrect “invalid” state after the input is emptied.

Changes:

• Updated target_bytes and batch_target_bytes input handlers to treat empty-string input as a “reset” case (clear preview and remove invalid state).
• Added a new Palette learning/action entry documenting the empty-string handling pattern for JS validation.

Reviewed changes

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

File	Description
saas_web.py	Adjusts the inline JS validation logic to clear error state when the input is emptied.
.jules/palette.md	Documents the empty-string reset pattern as a reusable UI validation guideline.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.