composer.modelPicker shipped unbound and opened the full-screen picker
dialog. It now defaults to ⌘⇧M — the chord LibreChat, Open WebUI, and
Cherry Studio independently converged on — and toggles the composer
pill's live dropdown instead, search field ready: ⌘⇧M → 'gr' → Enter
switches model in two keypresses.
Routing follows the tab-verb convention (#74447): the request lands on
the chat surface in the hovered zone first, then the active composer,
skipping hidden keep-alive tabs. With no chat surface on screen
(settings, profiles) the keybind falls back to the full dialog; with
the gateway closed the pill opens the dialog like a click would.
789d69271a