Run jobs under user or org accounts with upgrade / org-pick UX (#132)

feat(observability)

Restore expired sessions via summary-based catch-up (#52)

Scope model selection per session instead of globally

Add message edit and regenerate from any point in conversation

Fix session title only updating on the very first user message

Show cancelled prompt in shimmer status bar instead of chat input placeholder

feat: render cancelled tool state in UI after user interrupt

feat: SSE keepalive, reconnection, and is_processing flag

fix: per-session state management for smooth task switching

fix: clear global activity state when switching away from a session

fix: protect system prompt in undo, scan backwards for dangling tool calls, gate input on SDK status

replace websocket transport with SSE

sync: org onboarding, model updates, sandbox cleanup, prompt fixes

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