[BUG] Error when adding Date32 and Int64

### Describe the bug

DataFusion 41
```
> select to_date('1970-01-01', 'yyyy-mm-dd') + 5;
Error during planning: Cannot coerce arithmetic expression Date32 + Int64 to valid types
```

The same query runs ok in Postgres
Workaround
```
> select to_date('1970-01-01') + interval '5' day;
+-------------------------------------------------------------------------------------------------------------------+
| to_date(Utf8("1970-01-01")) + IntervalMonthDayNano("IntervalMonthDayNano { months: 0, days: 5, nanoseconds: 0 }") |
+-------------------------------------------------------------------------------------------------------------------+
| 1970-01-06 |
+-------------------------------------------------------------------------------------------------------------------+

```

### To Reproduce

```
select to_date('1970-01-01', 'yyyy-mm-dd') + 5;
```

### Expected behavior

Query should work

### Additional context

_No response_

Run the listed DataFusion 41 query and confirm the Date32 + Int64 planning error. Search for the "Cannot coerce arithmetic expression" error and trace the arithmetic type-coercion path. Done means the query succeeds and returns the expected date, without requiring the interval workaround.

Written by the indexing model from the issue text.