merge: resolve conflicts with origin/main in help.go

Keep branch additions (errSilent, exactArgs, examples template blocks)
that were added in the CLI help UX improvement.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

server/cmd/multica/help.go

@@ -35,6 +35,7 @@ func exactArgs(n int) cobra.PositionalArgs {
 	}
 }
 
+
 // initHelp configures the root command to use gh-style help output.
 func initHelp(root *cobra.Command) {
 	root.SetHelpTemplate(rootHelpTemplate)