[Feature Request]: Use `non-negative-int` for `UNSIGNED` database fields

[FeBe95]

Feature Description

The helper code could use enhanced typing for all INT UNSIGNED database fields by using non-negative-int instead of just int. A similar feature request was just implemented in Larastan (see: larastan/larastan#2391).

SQL

some_unsigned_field INT UNSIGNED NOT_NULL,

Current behavior

/**
  * @property int $some_unsigned_field
  */

$model->some_unsigned_field; // int

Expected behavior

/**
  * @property non-negative-int $some_unsigned_field
  */

$model->some_unsigned_field; // non-negative-int

[adelf]

We could probably do this if the Larastan package is used in the project... Thanks for the suggestion.