wip exercise to task implementation

app/services/proforma_service/export_task.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module ProformaService
+  class ExportTask < ServiceBase
+    def initialize(exercise: nil)
+      @exercise = exercise
+    end
+
+    def execute
+      @task = ConvertExerciseToTask.call(exercise: @exercise)
+      exporter = Proforma::Exporter.new(@task)
+      exporter.perform
+    end
+  end
+end