fix: reconnect WS on session switch instead of deleting dead sessions

fix: approval UI not updating after approve click

feat: per-session WebSocket architecture for parallel chat sessions

feat: cooperative cancellation, session persistence, background generation

feat: cooperative cancellation, session persistence, background generation

feat: implement cooperative agent cancellation with cancel button

fix: cast unknown to avoid TS2769 in sandbox approval UI

feat: require sandbox_create approval before sandbox operations

feat: merge HF Space improvements

frontend update

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

making docker run build work

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

improved design

log streaming

added code panel, tool approval, tool calls logging

functioning frontend and docker

Add web frontend infrastructure for HF Agent