Introduce a small easter egg. Woof. (#412)

Also changes auto-completion and /help to skip over slash commands that don't contain a description to avoid spoiling the surprise.

packages/cli/src/ui/hooks/useCompletion.ts

@@ -142,6 +142,7 @@ export function useCompletion(
             (altNameMatch && cmd.altName && cmd.altName.length > 1)
           );
         })
+        .filter((cmd) => cmd.description)
         .map((cmd) => ({
           label: cmd.name, // Always show the main name as label
           value: cmd.name, // Value should be the main command name for execution