Create a Lego avatar of an AI assistant with a friendly, professional, and approachable appearance. The avatar should be gender-neutral, featuring soft facial features, expressive eyes, and a warm smile. The design should incorporate subtle futuristic elements, like a glowing halo around the head, minimalist clothing in shades of blue and white, and a sleek, tech-inspired background. The overall feel should convey intelligence, empathy, and helpfulness, with a calm and balanced expression. The image should be clean and modern, reflecting a digital, yet human-like presence