🎨 Palette: Replace link with semantic button for clear action

[sheepdestroyer]

💡 What: Replaced the <a href="#"> tag for clearing annotations with a semantic <button type="button">.
🎯 Why: Clicking <a href="#">: causes unintended scrolling to the top of the page. Using a button provides correct semantics for an interactive action.
📸 Before/After: Visual appearance is preserved with inline CSS resets.
♿ Accessibility: Improves semantics for screen readers and avoids confusing scroll behavior.

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PR created automatically by Jules for task 4415222548332674915 started by @sheepdestroyer

Summary by Sourcery

Use a semantic button for clearing annotations to prevent unintended scrolling and improve accessibility.

Bug Fixes:

• Prevent page jumps when clearing annotations by replacing the hash link action with a semantic button.

Enhancements:

• Improve accessibility and interaction semantics for the annotation-clearing control while preserving its link-like appearance.

Chores:

• Record guidance on using semantic buttons for JavaScript-driven actions.
• Update ignore rules.

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[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

The PR makes the annotation-clearing control a semantic button instead of a hash link, preventing unintended page scrolling and improving accessibility while preserving the existing visual style; it also documents the pattern and updates ignore rules.

File-Level Changes

Change	Details	Files
Replace the annotation clear link with a semantic button while preserving its link-like appearance and action behavior.	Change the clear control from an anchor to <button type="button">. Add inline reset styles to retain the existing visual presentation. Add an accessible label describing the clear action and avoid the anchor’s page-jump behavior.	router/static/visualizer.html
Document the semantic-button pattern as a project learning and update repository ignore configuration.	Record guidance to use buttons for JavaScript actions and apply link-like styling when needed. Add the generated or task-related path to the ignore configuration.	.Jules/palette.md .gitignore

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Run ID: 4db84166-d97b-4d06-a4c0-6b1ecc8eebb3

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Hey - I've reviewed your changes and they look great!

Sourcery assessment

Approved.

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