Add transcript paste feature for Video Brain - users can paste transcript directly

Add web search fallback for Video Brain when YouTube transcript fails due to network issues

Add YouTube transcript extraction, improve Video Brain with follow-up questions, fix all modes

Fix model, improve error handling, add startup diagnostics for all modes

Fix Video Brain URL handling, add API health check, improve error diagnostics

Complete fix: All modes now use Tavily fallback, always show images/sources/links

Fix all modes - use WebSearchGraph, fix image format, add trafilatura

Deploy to Hugging Face Spaces - Remove Render, enable full features

Fix: Groq model, error handling for all modes, LITE_MODE fallbacks

Fix: Add LITE_MODE for Render free tier (512MB RAM)

Add Product MVP and Video Brain modes + Render deployment

Add Docker and Azure deployment configuration

Perplexity AI Clone - Full Production Version with 8 Modes