feat: global search and keyboard shortcuts

Ctrl/⌘ K (or /) opens a search over the projects and tickets of all my
projects, driven by the keyboard. g plus a letter moves between project
pages, c creates a ticket on the board, e edits the open ticket and ?
lists every shortcut. My work can now be searched by text through the API.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

libs/web/tracker/presenters/src/index.ts

@@ -1,2 +1,3 @@
 export * from './lib/tracker.routes';
 export * from './lib/ui/notifications-bell';
+export * from './lib/ui/command-palette';