[Docs] Add xdebug testing page #2840
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Motivation for the change, related issues
This pull request adds documentation for using Xdebug with IDE integration in the Playground CLI. The new section explains how to enable Xdebug with automatic IDE configuration for VSCode and PhpStorm, provides step-by-step setup instructions for each IDE, and describes path mappings and safety considerations. It also clarifies how to use Xdebug without IDE integration.
--xdebug
and--experimental-unsafe-ide-integration
flags, including a description of the automatic setup process and debug configuration creation.The changes are a draft to have guidance on the content; images will be included once the content is mostly approved