Features:
- Added addRequiredIf for conditional requirements based on other option values.
- Added deprecate method to mark options as deprecated and trigger E_USER_DEPRECATED warnings.
- Added min and max constraints helpers for string length, numeric values, and array counts.
- Added support for chaining multiple validators on a single option.
Documentation:
- Added documentation for conditional requirements, deprecation, min/max constraints, and multiple validators (EN/FR).
Composer:
- Updated project description and author homepage.
- Added ext-mbstring requirement.