Added GenAI Interview Prompts

[AnuragB2004]

Summary

This PR introduces a new set of interview prompts under genai/genai_interview_prompts.md focused on:

• Retrieval-Augmented Generation (RAG)
• LLM evaluation
• Prompt injection
• Fine-tuning vs RAG
• Multimodal GenAI product design

These prompts are relevant for candidates and interviewers in AI/ML, NLP, and product roles.

[AnuragB2004]

Hi Maintainers 👋

I've added GenAI-related engineering prompts and fixed the DCO signature as requested.
The PR is now ready for review and merge ✅

Thanks for this great open-source opportunity! 🚀

— Anurag

[pratik-mahalle]

Hey @AnuragB2004, Congratulation on raising your first pull request. Your prompts are really good. However, I have some suggestion. The prompt should be more details about what do and how to do. The good prompt is a well detailed prompt about what you want. I request you to improve the prompt more. and try to add a details description of the pr. Please make these changes

[pratik-mahalle]

Hey @AnuragB2004, Any changes in above prompts and also don`t add the separate section. You can add this in AI/ML or Agentic AI section. Please make this change and let me know