Static Analysis: psalm errors on model classes even with the plugin enabled

[NJPod]

Not sure what I am doing wrong but I have followed this guide https://valinor.cuyz.io/latest/other/static-analysis/.

My data model classes are read only with public properties declared in the constructor. Some models are dependencies of others.

psalm.xml:

<?xml version="1.0"?>
<psalm
    errorLevel="1"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="https://getpsalm.org/schema/config"
    xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
    findUnusedBaselineEntry="true"
    findUnusedCode="true"
>
    <plugins>
        <pluginClass class="CuyZ\Valinor\QA\Psalm\ValinorPsalmPlugin"/>
    </plugins>
    <projectFiles>
        <directory name="src" />
        <directory name="public" />
        <ignoreFiles>
            <directory name="vendor" />
        </ignoreFiles>
    </projectFiles>
</psalm>

composer.json:

    "autoload-dev": {
        "files": [
            "vendor/cuyz/valinor/qa/Psalm/ValinorPsalmPlugin.php"
        ]
    },

However, running ./vendor/bin/psalm still produces PossiblyUnusedMethod for the constructors and PossiblyUnusedProperty for the properties related to the model classes.

Any ideas?

Thanks.