Moved documentation files into a new docs/ directory and added a documentation index (docs/README.md). Updated the main README with improved project and documentation details. Set explicit API environment variables in Dockerfile for production. Enhanced next.config.mjs with improved API_BASE_URL handling and logging for better deployment clarity.
Replaces hardcoded production API URLs with localhost defaults for local development in both server and client code. Updates Dockerfile to require API URLs via deployment environment variables. Improves ChatTable to use a batch endpoint for chats and unread counts, with backward compatibility. Adds an env.example file to document required environment variables. Updates next.config.mjs to use environment variables for backend API rewrites and image domains.
