//! The ordered phases of one step. Most systems are typed; four take `&mut World` because they
//! must observe their own mutations within the same batch (see docs/design.md "Systems").
pubmodcreation;pubmodlayout;pubmodlifecycle;pubmodoutput;pubmodrequests;modrequests_control;pubmodsnapshot;pubmodinput;pubmodfinal_records;pubmodlayout_archive;pubmodlayout_control;pubmodtransfer;