* Remove crufty scuemata bits
Buhbye to: cue/ dir with old definitions, CI steps for checking unnecessary
things, and the original dashboard scuemata file.
* Remove grafana-cli cue subcommand
* Remove old testdata
* Don't swallow errors from codegen
* Small nits and tweaks to cuectx package
* WIP - refactor pluggen to use Thema
Also consolidate the embed.FS in the repo root.
* Finish halfway rename
* Convert all panel models.cue to thema
* Rewrite pluggen to use Thema
* Remove pkg/schema, and trim command
* Remove schemaloader service and usages
Will be replaced by coremodel-centric hydrate/dehydrate system Soon™.
* Remove schemaloader from wire
* Remove hangover field on histogram models.cue
* Fix lint errors, some vestiges of trim service
* Remove unused cuetsify cli command
* Add explicit cuetsy annotations to all models.cue
* Update to first cuetsy release
* Clean up cuetsify a bit; remove unification
* Update changes to news codegen output
