Pull Request resolves # .

• I read the Generative AI policy and my contribution is either not created with the help of AI or is compatible with the policy and GNU/GPL 2 or later.

Summary of Changes

Add support for a data-item-custom attribute in JGrid action buttons through an optional custom key in the options array. This allows developers to attach extra metadata to grid action buttons for custom JavaScript handling.

Testing Instructions

Pass a custom key in the options array when calling JGrid::action() and verify the data-item-custom attribute appears in the rendered HTML output.

Actual result BEFORE applying this Pull Request

JGrid action buttons do not support custom data attributes.

Expected result AFTER applying this Pull Request

JGrid action buttons render a data-item-custom attribute when a custom key is provided in the options array.

Link to documentations

• No documentation changes for guide.joomla.org needed
• No documentation changes for manual.joomla.org needed