cluster/services/incandescence: add base layout for ascensions

cluster/services/patroni/options.nix

@@ -16,7 +16,6 @@ in
           };
         };
       }));
-      default = {};
     };
     users = mkOption {
       type = attrsOf (submodule ({ ... }: {
@@ -33,7 +32,6 @@ in
           };
         };
       }));
-      default = {};
     };
   };
 }