AI Banner Graphics Generator – Component Init & Backend API Integration

[muhammadawaisshaikh]

This PR introduces the initial setup of the banner-generator-ai Angular component along with the Flask-based Python REST API that leverages Google Gemini (Gemma3) for image generation.

Frontend (Angular)

• Initialized banner-generator-ai component.
• Added form to capture prompt inputs dynamically.
• Integrated with the Flask backend to fetch AI-generated base64 image.
• Auto-download functionality added for generated image.

Backend (Python Flask)

• Introduced REST API /generate-image using Flask.
• Integrated Google Gemini (gemini-2.0-flash-exp-image-generation) for generating images based on user prompts.
• Returns AI-generated image in base64 format for Angular client.

[sonukapoor]

LGTM