Ctrl+Shift+H moves the keyboard between the session list and the pane;
j/k walk the cards, Enter opens, Escape hands the pane back. The walk
skips expanded folder headers and stops on collapsed ones, matching the
TUI.
`?` toggles a dialog listing every web binding, mirroring the TUI's help
overlay. A `?` button in the header covers pointer-only clients, and the
welcome screen points at the key.
One registry (SHORTCUTS) drives the rendering, so a binding added without
an entry reads as missing. main.ts and the overlay now share one
isTypingTarget guard instead of two copies.
Miguel Palhas