2026.4.7.1266 - New release CI/CD workflow, Promo codes, SkinnedMeshPositioner — Resonite Steam update #1113500

Hello everyone! I've got relatively small build for you today with a few additions. What's really exciting about this build is how it was published! Thanks to @j4.lc's work, this build has been compiled & published fully from a cloud CI/CD pipeline, instead of me doing this manually! This simplifies a lot of the steps I normally have to take and reduces mistakes (e.g. wrong files being included). Since this is first production push of this type (we've done a bunch of prerelease pushes before this), there might be some initial issues still, so bear with us if anything explodes, it should be fixed up soon! The other additions in this build is introduction of Promo codes! When new users register with this code, they'll get extra account perks for a limited time, which should help entice new users to register! We'll start using those very soon for our marketing campaigns, which will also hel...