how to save images in Hive db

**Question**
Please explain the problem you are running into.

**Code sample**
```dart
Provide a few simple lines of code to show your problem.
```

**Version**
- Platform: iOS, Android, Mac, Windows, Linux, Web
- Flutter version: [e.g. 1.5.4]
- Hive version: [e.g. 0.5.0]

The issue contains only the question “how to save images in Hive db” and an unfilled Dart code template; no source file or test is named. Start by clarifying the intended image representation and supported platforms, then identify the relevant Hive usage documentation or example. Done means the question has a concrete, verified explanation or a clearly scoped documentation change.

Written by the indexing model from the issue text.