Add Streamlit frontend as alternative to Flask

[Pawansingh3889]

MediAsk currently uses Flask templates for the frontend. A Streamlit version would:

• Make the UI more interactive (real-time updates, chat interface)
• Reduce frontend code complexity
• Allow non-frontend developers to contribute to the UI

Scope:

• Create a Streamlit app that connects to the existing Flask API
• Replicate key features: ask questions, browse answers, vote, reputation display
• Keep Google OAuth authentication working
• Deploy to Streamlit Cloud as an alternative demo

Skills needed: Streamlit, Python, REST APIs