🎨 Palette: [UX improvement] Add ARIA labels to playground controls

[aloewright]

💡 What: Added aria-label attributes to the Guide <select>, Preset <select>, and Temperature <input type="range"> controls in the playground view.
🎯 Why: The <Control> wrapper passes form elements via children rather than using explicit htmlFor and id linking. Without aria-label, screen readers have no context for what these controls do, impacting accessibility.
📸 Before/After: No visual changes, structural accessibility improvement only.
♿ Accessibility: Screen readers will now announce "Guide", "Preset", and "Temperature" when focusing on these inputs, dramatically improving the usability of the playground for visually impaired users.

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PR created automatically by Jules for task 7063514304657156856 started by @aloewright

Summary by CodeRabbit

• Bug Fixes
  • Added missing aria-label attributes to form controls in the playground view (Guide selector, Preset selector, and Temperature range input).

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Status	Name	Latest Commit	Updated (UTC)
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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: f0d164ed-27d6-4e1f-b70b-acaad7f60670

📥 Commits

Reviewing files that changed from the base of the PR and between bab8f67 and a7cc539.

📒 Files selected for processing (1)

• apps/quill/client/components/playground-view.tsx

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Walkthrough

This PR adds missing aria-label attributes to three form controls in the PlaygroundView component: the "Guide" dropdown, the "Preset" dropdown, and the "Temperature" range slider. The changes improve accessibility for screen reader users without altering any UI logic or functionality.

Changes

Form control aria-labels

Layer / File(s)	Summary
Aria-label attributes for form controls apps/quill/client/components/playground-view.tsx	The "Guide" <select>, "Preset" <select>, and "Temperature" <input> controls receive aria-label attributes for improved screen reader accessibility.

🎯 1 (Trivial) | ⏱️ ~2 minutes

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: adding ARIA labels to playground controls for UX/accessibility improvement.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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• Commit unit tests in branch palette-aria-labels-playground-7063514304657156856

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[gemini-code-assist]

Code Review

This pull request adds aria-label attributes to the "Guide", "Preset", and "Temperature" input controls in the PlaygroundView component to improve accessibility. The reviewer noted that adding explicit aria-label attributes to the "Guide" and "Preset" select elements is redundant because they are already implicitly associated with their labels via the <Control> wrapper, which can cause screen readers to double-announce the labels.

[gemini-code-assist]

Since the <select> element is already nested inside a <label> element (via the <Control> wrapper), it is implicitly associated with the label text "Guide". Adding an explicit aria-label with the exact same text is redundant and can cause some screen readers to double-announce the label (e.g., "Guide, Guide, pop-up button").

Consider removing the redundant aria-label attribute.

Suggested change

	aria-label="Guide"
	className="pp-select"
	className="pp-select"

[gemini-code-assist]

Similar to the "Guide" control, the <select> element for "Preset" is already nested inside a <label> element via the <Control> wrapper, making it implicitly associated with the label text "Preset". Adding aria-label="Preset" is redundant and can lead to double-announcements in some screen readers.

Consider removing the redundant aria-label attribute.

Suggested change

	aria-label="Preset"
	className="pp-select"
	className="pp-select"

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