Smallest possible Cat app that is also a quine? (after http://paste.scsys.co.uk/198326 by t0m aka @bobtfish)

kitten.psgi

use base 'Catalyst', 'MooseX::MethodAttributes::Inheritable';
use File::Slurp;
sub dispatch { my $b = read_file(__FILE__);shift()->res->body($b) }
__PACKAGE__->setup;
__PACKAGE__->psgi_app;