Header-grade search/command palette. Bundles the slim trigger button (with platform-aware ⌘K/Ctrl-K kbd hint) AND the modal CommandDialog into one block; consumers drop it once and the global keyboard shortcut wires itself. Takes a `groups` array of `{ heading, items: [{ label, hint, icon, onSelect }] }` and calls `onSelect`. `showTrigger={false}` hides the inline button so the consumer can control open state from elsewhere.
npx shadcn@latest add https://uipkge.dev/r/react/command-palette.jsoncommand-palette