added comment-checker and auto update for it

added cachix

fixed ci errors

fixed gh workflow

Bump peter-evans/create-pull-request from 6 to 8 (#2)

Bump actions/checkout from 4 to 6 (#1)

Add CI workflows and maintenance scripts

Pin oh-my-openagent hashes for all supported platforms

Fix runtime crash: use autoPatchelfHook packaging

Initial overlay scaffold