Misc unprioritized TODO list for v0 prototype

[afourney]

• [ ] Document API endpoints
• [ ] Add API endpoints for setting user-bio and other settings
• [ ] Harden API endpoints for all user inputs (input sanitization)
• [ ] Do something smarter with overly-long chats (it currently just prints an error)
• [ ] Catch all errors when handling API calls, and pass to client in appropriate JSON objects
• [ ] Clean up Agent code in preparation for supporting different agents
• [ ] Support multiple agent implementations.
• [ ] Allow specification of different agents when starting a conversation.
• [ ] Update Browser Plugin to post papers, and host plugin on the webpage
• [x] Enable users to add/upload papers
• [ ] Allow users to list and continue conversations
• [x] Remember when users log in
• [x] Don't poll when the tab is hidden
• [ ] Figure out why uWSGI reports failing to start (but yet still runs) on Docker