Bulk Operations

```
// Create multiple items at once
await db.User.createMany([user1, user2, user3]);

// Update multiple items
await db.User.updateMany([updatedUser1, updatedUser2]);

// Delete by multiple keys
await db.User.deleteMany(['id1', 'id2', 'id3']);

// Conditional bulk delete
await db.User.deleteWhere((qb) => qb.where('status').equals('inactive'));
```