A command-first writing workflow

Open common Workspace and editor actions from one searchable command palette and a consistent shortcut system.

Letter.md now brings common Workspace and editor actions into one searchable command surface.

What changed

Open the command palette with Command K on macOS or Control K on Windows and Linux.
Create documents, search or quickly open content, show the outline, enter focus mode, and open settings.
Discover formatting and navigation shortcuts from the shortcut guide.
Use the same underlying actions from menus and the keyboard.
Keep commands filtered to what is available in the current context.

The palette speeds up repeat work without making keyboard shortcuts mandatory.