Philips Hue: Set Light Color
Set color and brightness of a Philips Hue light or group. Accepts both v1 IDs (e.g., '81', '0') and v2 UUIDs (e.g., '2ec2b2f1-...'). At least one of lightId or groupId must be provided. Ideal for: color animations, mood lighting, dynamic scenes, notifications.
