Fabric Support for System Messages

[chr-hertel]

Fabric is a powerful system prompt collection - sadly in python ecosystem:
https://github.com/danielmiessler/fabric/tree/main/patterns

i did a first - rather poor - try to bring this to php, but i think a github actions based approach of dumping/updating the markdown files on release of the original lib would be more handy.
https://github.com/php-llm/fabric-pattern

maybe something like

$messages[] = SystemMessage::fabric('create_summary');

[chr-hertel]

on the other hand, when installing php-llm/fabric-pattern this is already possible with

$messages[] = Message::forSystem((new Pattern)->load('create_summary'));

[chr-hertel]

Could leverage InputProcessor similar to #186