DateTimeOffset not supported

Currently we are using DateTimeOffset in one of our types, and the EntityFrameworkCore Driver does not seem to handle this correclty whereas the ClickHouse.Driver.ADO did:

```
startDate ??= DateTimeOffset.MinValue;
endDate ??= DateTimeOffset.MaxValue;
var res = await _dbContext.Consumptions
.Where(c => c.DateTime >= startDate)
.Where(c => c.DateTime < endDate)
.SumAsync(c => c.Value, cancellationToken: cancellationToken);
```

where DateTime, startDate and endDate are DateTimeOffsets, gives the following error:
`DB::Exception: Cannot convert string '2026-01-01 00:00:00+00:00' to type DateTime64(6): while executing function greaterOrEquals on arguments __table1.DateTime DateTime64(6) DateTime64(size = 0), '2026-01-01 00:00:00+00:00'_String String Const(size = 0, String(size = 1)). (TYPE_MISMATCH) (version 25.8.29.51 (official build))`

Start by reproducing the shown Entity Framework Core query using DateTimeOffset values against a ClickHouse DateTime64(6) column, then trace how the provider translates the query parameters. Done means the query executes without the reported TYPE_MISMATCH and preserves the intended date range; the issue does not name specific files or tests to inspect.

Vom Indexierungsmodell aus dem Issue-Text verfasst.