[ADD]ADD notify for done task+add request in project invoice

odex25_project/project_base/models/project_task.py

@@ -62,6 +62,7 @@ class ProjectTask(models.Model):
         department_manager_users = self.env.ref('project_base.group_project_department_manager').users
         # Combine both user sets
         user_ids = manager_users | department_manager_users
+        if self.stage_id.is_closed:
             self.env['mail.message'].create({
                 'message_type': "notification",
                 'body': _("Task %s is done for project %s and needs your action") % (self.name, self.project_id.project_no or ""),