MAJOR: Downgrade to Gradio 3.50.2 and update all API calls for compatibility to fix persistent JSON schema errors

Fix build errors: clean up duplicate requirements, use standard re instead of regex, simplify package versions

Downgrade to Gradio 4.28.3 and heavily simplify all component configurations to avoid JSON schema errors

Improve API key error handling and add helpful setup instructions

Fix Groq client initialization and remove unsupported Gradio launch parameters

Fix runtime errors: update Groq client, fix Gradio chatbot compatibility, add missing regex dependency

deploy 2

deploy

initial commit