### What do you see as an issue?

The [/dags/{dag_id}/details](https://airflow.apache.org/docs/apache-airflow/stable/stable-rest-api-ref.html#operation/post_set_task_instances_state) endpoint of the REST API does not return all of the keys that are listed in the documentation. If I run `curl -X GET localhost:8080/api/v1/dags/{my_dag}/details`, then compare the results with the results in the documentation, you can see the following missing keys:

```python
>>> for key in docs.keys():
...     if not key in actual.keys():
...             print(key)
...
root_dag_id
last_parsed_time
last_pickled
last_expired
scheduler_lock
timetable_description
has_task_concurrency_limits
has_import_errors
next_dagrun
next_dagrun_data_interval_start
next_dagrun_data_interval_end
next_dagrun_create_after
template_search_path
```

### Solving the problem

Either remove these keys from the documentation or fix the API endpoint

### Anything else

_No response_

### Are you willing to submit PR?

- [ ] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

"""Return the latest date for which at least one dag run exists."""
        return session.scalar(select(func.max(DagRun.execution_date)).where(DagRun.dag_id == self.dag_id))
    @property
    def latest_execution_date(self):
        """Use `airflow.models.DAG.get_latest_execution_date`, this attribute is deprecated."""
        warnings.warn(
            "This attribute is deprecated. Please use `airflow.models.DAG.get_latest_execution_date`.",
            RemovedInAirflow3Warning,
            stacklevel=2,
        )
        return self.get_latest_execution_date()
    @property
    def subdags(self):
        """Return a list of the subdag objects associated to this DAG."""
        
        from airflow.operators.subdag import SubDagOperator
        subdag_lst = []
        for task in self.tasks:
            if (
                isinstance(task, SubDagOperator)
                or
                
                type(task).__name__ == "SubDagOperator"
                or task.task_type == "SubDagOperator"
            ):
                subdag_lst.append(task.subdag)
                subdag_lst += task.subdag.subdags
        return subdag_lst
    def resolve_template_files(self):