fix(color-picker): refactor ColorPickerImpl to parse multiple color f…

[ccpu]

Improve color value parsing in ColorPickerImpl to support multiple color formats (hex, rgb, hsl, hsb) instead of only hex, with fallback to default color when parsing fails.

[vercel]

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[Copilot]

Pull request overview

This PR refactors the ColorPickerImpl component to support parsing multiple color formats (hex, rgb, hsl, hsb) instead of only hex format. The change improves the color value parsing capabilities and adds a fallback mechanism to handle parsing failures gracefully.

• Replaces hexToRgb with parseColorString to support multiple color formats
• Adds fallback to black color { r: 0, g: 0, b: 0 } when parsing fails, while preserving the current alpha channel value

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[Copilot]

The new parsing logic does not preserve the existing alpha channel value when parsing color formats that don't include alpha information (like hex colors). The old implementation explicitly passed currentState.color.a to preserve it. Consider updating to preserve the current alpha value when the parsed color uses a default alpha value of 1, similar to how it's handled in the HexInput component at line 1298.

Suggested change

	const color = parsed || { r: 0, g: 0, b: 0, a: currentState.color.a };
	let color = parsed || { r: 0, g: 0, b: 0, a: currentState.color.a };
	if (
	parsed &&
	currentState.color &&
	typeof currentState.color.a === "number"
	) {
	const trimmed = valueProp.trim().toLowerCase();
	const isHexWithoutAlpha =
	trimmed.startsWith("#") &&
	(trimmed.length === 4 || trimmed.length === 7);
	if (isHexWithoutAlpha && parsed.a === 1 && currentState.color.a !== 1) {
	color = { ...parsed, a: currentState.color.a };
	}
	}