Normalization of date fields for CSL

I'm currently doing a review of this module to determine if I want to use it for my own new website (I'm about to start on my Ph.D. dissertation and am building a place to document the process!), or try to roll my own custom built solution, and so far the only hangup I have is that dates don't use proper Drupal date fields. Other than that, it's an amazing body of work. Are there still issues with dates like this? I wish we could capture the day along with the month and year for publication date, for instance, if that info is available. I haven't tested how this module interacts with Views, but I am hoping that we can setup filters to filter them by date as well wherever needed, and choose per bundle what date format we want. I remember in the past having difficulty with that in Views when dates are text fields...

Any site that uses data from D7 migrated using bibcite_migrate and the format will be either "mm/yyyy" or "mm/dd/yyyy".

The current code is:

    return [
      'date-parts' => [
        array_reverse(explode('/', $value)),
      ],
      'literal' => $value,
    ];

I think it'd be worth building some settings to control this, because it's all really vague.

A simple patch that changes the logic to work with dates in the format "mm/dd/yyyy" for compatibility with migrated data.

This should be configurable globally to control the format.

This updates the date field description to note that the date should be in the format mm/yyyy or mm/dd/yyyy.