apps/web/src/components/ChatView.tsx             |  18 ++-
 apps/web/src/components/Sidebar.tsx              |  31 ++---
 apps/web/src/hooks/showUndoToast.test.ts         |  34 ++++-
 apps/web/src/hooks/showUndoToast.ts              |  54 ++++++--
 apps/web/src/hooks/useThreadActionMenu.ts        |  26 +---
 apps/web/src/hooks/useThreadActions.ts           | 236 +++++++++++++++++++++++---------
 apps/web/src/hooks/useThreadActions.undo.test.ts | 212 ++++++++++++++++++++++++----
 apps/web/src/keybindings.test.ts                 |  27 ++++
 apps/web/src/keybindings.ts                      |   4 +
 apps/web/src/lib/editableFocus.ts                |  17 +++
 docs/user/keybindings.md                         |  12 +-
 docs/user/thread-sidebar.md                      |   6 +-
 packages/contracts/src/keybindings.ts            |   1 +
 packages/shared/src/keybindings.ts               |   1 +
 14 files changed, 520 insertions(+), 159 deletions(-)