theme edit and tool display fix

removed avatars and made ui improvements

Comprehensive frontend/backend overhaul: unified tool system, responsive UI, code quality

frontend update

Improve job approval UX with tabs, job URL, and message ordering

improved tool calling, push to hub, etc.

logs have a button to see, improved rejection/approved flow, trying to handle tqdm

plan tool bottom right

added code panel, tool approval, tool calls logging

Add web frontend infrastructure for HF Agent