Fix Vercel build: remove unused vars from SSE refactor; local build passes

AI chat: typewriter streaming with subtle per-chunk fade; keep font consistent

Standardize headers; full-width chat; expandable flashcards; dark editor

Add comprehensive deployment instructions and project documentation

Customize prompts for Dwarkesh Podcast research workflow

Fix multiple issues with file loading and questions format

Add stop button functionality for streaming chat

Fix glitchy chat behavior and update to claude-opus-4-1

Implement CoResearcher - AI-powered document analysis application

Initial commit from Create Next App