Support for @template T of array{foo: int} in PHPDoc comments

[barronhsu15]

Feature description or problem with existing feature
First of all, thank you for creating such an amazing tool! Intelephense has been incredibly helpful for my PHP development.

Currently, I noticed that Intelephense doesn't support @template T of array{foo: int} in PHPDoc comments. adding support for it would make Intelephense even more powerful and compatible with modern PHP practices.

Describe the solution you'd like
I would love to see Intelephense support parsing and understanding @template T of array{foo: int} syntax in PHPDoc comments. Specifically:

1. Recognize and validate the structure of arrays defined with this syntax.
2. Provide accurate type inference and autocompletion when such templates are used in functions or classes.

/**
 * @template T of array{foo: int}
 *
 * @param T $foo
 * @return int
 */
function foo($foo)
{
    return $foo['foo'];
}

Additional context
Thank you for considering this request, and I truly appreciate all the effort that goes into maintaining and improving this tool.

Currently, when using @template T of array{foo: int} in PHPDoc comments and applying it to a function, Intelephense infers the parameter and return types as mixed. This can be seen in the attached screenshot: