feat: artifact panel, edit-script with syntax highlighting, input lock on pending approval

ui updates (#1)

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

frontend update

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

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

plan tool bottom right

improved design

added code panel, tool approval, tool calls logging