native macOS codings agent orchestrator prowl.onev.cat

Add Expand/Restore shortcut (⌥⌘E) and palette commands for canvas master

Keyboard: bind Expand / Restore Canvas Card to ⌥⌘E (a single toggle — there's only ever one expanded card). ⌥⌘E joins the existing canvas shortcuts ⌥⌘A/R/G and avoids the system ⌥⌘M (Minimize All). CanvasView handles the key and toggles the focused (primary) card. Command palette: surface Expand/Restore, Arrange, Organize, and Select All in the palette while in Canvas mode (the latter three weren't there before). Since these are CanvasView's view-local actions (not reducer state), route them through a one-shot reducer→view trigger modeled on CanvasFocusRequest: a new CanvasCommandRequest + RepositoriesFeature state (request/consume), AppFeature maps the palette delegates to .requestCanvasCommand, and CanvasView observes pendingCanvasCommandRequest, runs the command, and reports the id back to clear it. Wiring: new Kind/Delegate cases, viewDelegateAction mapping, palette item rows (icon/title/help/category), AppShortcuts CommandID + default shortcut + recordable command entry. Tests cover the palette items (present in Canvas mode, absent otherwise) and the request/consume reducer logic.