feat: ✨ add craft_and_complete function to create and execute artefacts

lib/comfpile/core.rb

@@ -154,5 +154,16 @@ module Comfpile
             puts "Done after #{step_count} exec loops..."
         end
 
+        def craft_and_complete(stage, target)
+            artefact = craft_artefact(stage, target)
+
+            return nil if artefact.nil?
+
+            while artefact.in_progress?
+                execute_step
+            end
+
+            artefact
+        end
     end
 end