### 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 f"<DAG: {self.dag_id}>"
    @property
    def next_dagrun_data_interval(self) -> DataInterval | None:
        return _get_model_data_interval(
            self,
            "next_dagrun_data_interval_start",
            "next_dagrun_data_interval_end",
        )
    @next_dagrun_data_interval.setter
    def next_dagrun_data_interval(self, value: tuple[datetime, datetime] | None) -> None:
        if value is None:
            self.next_dagrun_data_interval_start = self.next_dagrun_data_interval_end = None
        else:
            self.next_dagrun_data_interval_start, self.next_dagrun_data_interval_end = value
    @property
    def timezone(self):
        return settings.TIMEZONE
    @staticmethod
    @provide_session
    def get_dagmodel(dag_id: str, session: Session = NEW_SESSION) -> DagModel | None:
        return session.get(
            DagModel,
            dag_id,
            options=[joinedload(DagModel.parent_dag)],
        )
    @classmethod
    @internal_api_call
    @provide_session
    def get_current(cls, dag_id: str, session=NEW_SESSION) -> DagModel | DagModelPydantic: