* Added combinatorial shuffle.
* A1111: Improved combinatorial with hiresfix.
* Some refactoring.
* Update of AI test instructions.
Co-authored-by: Copilot <copilot@github.com>
* Separated tests in multiple files.
* Added pydantic validation for configuration.
* Improved backup/restore on visit of nodes.
* Echoing of variables with default no longer visits the default when not used (and no longer creates variables that were not actually used).