Fix Client to expect X-Percona-Resource-Type else links. Add headers to Mock/UserAgent. Start testing run_agent(). As TO_JSON() magic to Run so encode can encode Service contain blessed Run objs. Use BUILDARGS to convert Run as hashref to real objs.

lib/Percona/WebAPI/Resource/Run.pm

@@ -46,6 +46,8 @@ has 'output' => (
    required => 1,
 );
 
+sub TO_JSON { return { %{ shift() } }; }
+
 no Lmo;
 1;
 }