### field · function

Create a field definition for a model property.

This function uses TypeScript magic to return the field configuration object
while appearing to return the actual field value type to the type system.
This allows for both runtime introspection and compile-time type safety.

**Signature:** `<TYPE extends TypeWrapper<any>>(type: TYPE, options?: Partial<FieldConfig<FieldValue<TYPE>>>) => FieldValue<TYPE>`

**Type Parameters:**

- `TYPE extends TypeWrapper<any>` - The field type.

**Parameters:**

- `type: TYPE` - The type wrapper for this field.
- `options: Partial<FieldConfig<FieldValue<TYPE>>>` (optional) - Additional field configuration options.

**Returns:** The field value (typed as T, but actually returns FieldConfig<T>).

**Examples:**

```typescript
const User = E.defineModel("User", class {
  name = E.field(E.string, {description: "User's full name"});
  age = E.field(E.opt(E.number), {description: "User's age", default: 25});
});
```