Event-modeling skill provenance

This directory began from jwilger/agent-skills' event-modeling skill, released
under CC0-1.0. CC0 permits copying, modification, redistribution, and
relicensing without an attribution requirement.

The current Slipwai adaptation changes the workflow, repository integration,
model layout, and supporting guidance. It is distributed under Slipwai's
repository-root MIT License. This provenance note is retained for transparency;
it does not imply endorsement by the original author.

Source:
https://github.com/jwilger/agent-skills

CC0-1.0 legal code:
https://creativecommons.org/publicdomain/zero/1.0/legalcode
