🎨 Palette: [UX improvement] Add ARIA labels and focus rings to icon-only buttons in AgentCard

[bobdivx]

💡 What: Added aria-labels, focus-visible styling (keyboard focus rings), and aria-hidden="true" on SVGs to the icon-only action buttons (Lancer, Arrêter, Configurer) in the AgentCard component.
🎯 Why: To improve accessibility for users navigating the dashboard via screen readers (who previously received no context for these buttons) and keyboard users (who had no visual indication of focus).
📸 Before/After: The buttons now visually highlight with a green ring (#175B37) when focused via the Tab key.
♿ Accessibility: Addresses WCAG criteria for name, role, value, and visible focus. Screen readers will now announce "Lancer une mission", "Arrêter", or "Configurer cet agent (outils, prompt)" instead of attempting to read raw SVG content or ignoring the buttons entirely.

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PR created automatically by Jules for task 16911729596696815191 started by @bobdivx

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Project	Deployment	Actions	Updated (UTC)
forge	Ready	Preview, Comment	Jun 10, 2026 5:40pm

[gemini-code-assist]

Code Review

This pull request improves the accessibility of the AgentCard component by adding aria-label attributes, hiding decorative SVGs from screen readers with aria-hidden="true", and adding focus-visible Tailwind classes for keyboard navigation. It also documents these accessibility practices in .jules/palette.md. The reviewer provided valuable feedback to further improve the implementation, suggesting a more descriptive ARIA label for the stop action and recommending the addition of type="button" to prevent accidental form submissions.

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[gemini-code-assist]

To improve accessibility (a11y), the label for the stop action should be more descriptive. Changing 'Arrêter' to 'Arrêter la mission' provides clearer context for screen reader users, making it consistent with 'Lancer une mission'. You can also update the title attribute on line 228 to match this label for consistency.

Suggested change

	aria-label={cmd === 'start_work' ? 'Lancer une mission' : 'Arrêter'}
	aria-label={cmd === 'start_work' ? 'Lancer une mission' : 'Arrêter la mission'}

[gemini-code-assist]

It is a best practice to explicitly set type="button" on <button> elements that do not submit forms. This prevents accidental form submissions if the AgentCard component is ever nested inside a <form> element. You should also apply this to the start/stop buttons above.

Suggested change

	class="rounded-xl border border-gray-200 bg-white p-2 text-gray-400 transition-all hover:border-[#175B37]/30 hover:text-[#175B37] focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-[#175B37]"
	type="button"
	class="rounded-xl border border-gray-200 bg-white p-2 text-gray-400 transition-all hover:border-[#175B37]/30 hover:text-[#175B37] focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-[#175B37]"