add nixosModules.default alias for single-import deploy

flake.nix

@@ -99,6 +99,14 @@
           hyperhiveFlake = "${self}";
         };
         hive-forge = ./nix/modules/hive-forge.nix;
+        # Convenience alias: one import covers the full hyperhive host
+        # stack (hive-c0re + hive-forge, since hive-c0re already pulls
+        # in hive-forge). Intended usage:
+        #
+        #   imports = [ hyperhive.nixosModules.default ];
+        #   services.hive-c0re.enable = true;
+        #
+        default = self.nixosModules.hive-c0re;
       };
 
       nixosConfigurations =