feat(text-field): add support for color input type

[treeder]

Description

Adds support for type="color" on <md-text-field>.

Details:

• Updates renderField() to automatically mark type === 'color' as populated so the floating label floats properly above the color swatch.
• Adds Material Design 3 styles for .input[type='color'] and cross-browser swatch pseudo-elements (::-webkit-color-swatch, ::-moz-color-swatch).
• Adds disabled state styles and pointer cursor on the field for color inputs.
• Updates documentation and adds an example to the inputs demo.

Verification:

• Verified syntax, styles, and demo integration.

[github-actions]

📋 Review Summary

This pull request adds native HTML5 type="color" input support to the md-text-field component. It includes custom styling for color swatches across WebKit and Gecko engines, ensures appropriate label floating via the populated attribute, and updates documentation and demo files.

🔍 General Feedback

• Clean and minimal implementation for supporting native color inputs within md-text-field.
• Good handling of the populated state to ensure floating labels do not overlap the native color swatch when no initial value is explicitly provided.

📊 Token Usage & Cost Efficiency

Metric	Value
Input Tokens (uncached)	35,051
Input Tokens (cached)	323,315 (⚡ 90.2% cached)
Output Tokens	144
Total Session Tokens	359,891
Cost (uncached input)	$0.0263
Cost (cached input)	$0.0242
Cost (output)	$0.0005
Estimated Total Cost	$0.0511

Gemini 3.7 Flash: introductory rate $0.75/$3.75 per 1M applied; reverts to $1.5/$7.5 after 2026-12-31.
Gemini 3.7 Flash: standard tier; batch and flex are half again, priority is higher.
Cache reads are priced here, but context-cache STORAGE, where the model charges for it separately per token-hour, is not included, so the figure can run slightly low.

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	material	d602958	Commit Preview URL Branch Preview URL	Aug 27 2026, 06:06 AM