Workflow default status and computing positions

db/migrate/20260425123859_add_default_status_to_workflows.rb

@@ -0,0 +1,5 @@
+class AddDefaultStatusToWorkflows < ActiveRecord::Migration[8.1]
+  def change
+    add_reference :workflows, :default_status, foreign_key: { to_table: :task_statuses }
+  end
+end