🎨 Palette: Improve interactive element accessibility

[sheepdestroyer]

💡 What: Replaced clear annotation <a> tag with native <button> and added type="button" attributes in the visualizer. Added descriptive aria-labels to dashboard link buttons.
🎯 Why: Fixes page jump when clearing annotations and improves screen reader support for console links.
📸 Before/After: N/A (no visible changes).
♿ Accessibility: Improved keyboard navigation on interactive elements and enhanced screen reader context.

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PR created automatically by Jules for task 7853348159379244494 started by @sheepdestroyer

Summary by Sourcery

Improve accessibility and interaction behavior across the visualizer and dashboard controls.

Bug Fixes:

• Prevent annotation clearing from unexpectedly navigating the visualizer page to the top.

Enhancements:

• Improve accessibility semantics and screen-reader context for visualizer controls and dashboard links.
• Ensure visualizer action controls behave as non-submitting buttons.

Chores:

• Record guidance on using semantic buttons for interactive JavaScript actions.

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[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Improves interactive accessibility by using explicit button semantics for visualizer actions, eliminating page jumps when clearing annotations, and adding descriptive screen-reader labels to dashboard links that open in new tabs.

File-Level Changes

Change	Details	Files
Made visualizer controls explicit non-submit buttons and replaced the annotation-clearing link with a semantically correct button while preserving its visual styling.	Added type="button" to filter, export, annotation, and note-save controls. Replaced the href="#" clear action with a styled button to prevent page jumps during JavaScript interaction.	router/static/visualizer.html
Improved accessible names for external dashboard links, including their destination and new-tab behavior.	Added descriptive aria-label values to the Goose Telegram, Observability, Admin, and Server Router links.	router/templates/dashboard.html
Documented the accessibility convention for JavaScript actions and styled semantic buttons.	Recorded the page-jump issue caused by anchor-based actions and the recommended button replacement.	.Jules/palette.md

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Run ID: 3f2f6fe2-7b14-4ea1-8180-94cb26c8c17d

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[sourcery-ai]

Hey - I've found 1 issue

Prompt for AI Agents

Please address the comments from this code review:
## Individual Comments### Comment 1
<locationpath="router/templates/dashboard.html"line_range="855" />
<code_context>
<divclass="btn-group">
<!-- Goose Dashboard local -->- <a href="https://t.me/SheepBot?start=goose" target="_blank" rel="noopener noreferrer" class="btn" style="background: rgba(251, 191, 36, 0.05); border-color: rgba(251, 191, 36, 0.2);" aria-describedby="new-tab-desc">+ <a href="https://t.me/SheepBot?start=goose" target="_blank" rel="noopener noreferrer" class="btn" style="background: rgba(251, 191, 36, 0.05); border-color: rgba(251, 191, 36, 0.2);" aria-describedby="new-tab-desc" aria-label="Open Goose Telegram Bot in new tab"> <span>{{ src_badge("GOOSE", "#fbbf24") | safe }} <span aria-hidden="true">🦢</span> Goose Telegram Bot</span> <span class="btn-arrow" aria-hidden="true">→</span>
</code_context>
<issue_to_address>
**nitpick (bug_risk):** Each link's accessible name already says "in new tab" while `aria-describedby` separately appends "(opens in a new tab)", so screen readers announce the new-tab instruction twice.
**Triggers:** When a screen reader encounters any of the four updated dashboard links.
**Suggested fix:** Remove "in new tab" from each `aria-label`, or remove the redundant `aria-describedby` reference.
</issue_to_address>

Sourcery assessment

Approved.

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[sourcery-ai]

nitpick (bug_risk): Each link's accessible name already says "in new tab" while aria-describedby separately appends "(opens in a new tab)", so screen readers announce the new-tab instruction twice.

Triggers: When a screen reader encounters any of the four updated dashboard links.

Suggested fix: Remove "in new tab" from each aria-label, or remove the redundant aria-describedby reference.