Kinds: publish kinds to kind registry (#67515)

* Start local schema registry

* Try to use latest version

* Revert "Try to use latest version"

This reverts commit 682385c0e4.

* update schema registry jenny to validate new lineages

* save kind instead of lineage

* handle plugins

* get published schemas from GH + fix plugins

* handle kind not yet published

* Add script to use in workflow + handle maturity

* first pass on publish-kinds GH workflow

* fix script path

* remove unused script

* use make gen-cue instead of script

* trigger publish-kinds on every commit (for test)

* temporary update to use specific thema commit

* wrapping errors

* remove GH token & refactor for rate limit

* Update publish-kinds.yml

* Update publish-kinds.yml

* revert go.mod and go.sum updates

* use Thema specific commit

* Kind registry v2

* fix script path

* fix second script path

* update go.mod

* update schema registry source

* test checks

* add GITHUB_TOKEN

* revert test checks

* actually write next files when publishing

* Add kind set arg

* Add comments

* clean up workflows

* update Thema

* Update .betterer.results

* few fixes after lineage flattening

* Update publish-kinds-next.yml

* add codeowners for new files

* update thema

* apply review feedback

* update go version in workflows

* clean up workflows

* Add step to generate token and test

* Update publish-kinds-next.yml

* fix script

* try with the app name

* Update publish-kinds-next.yml

* clean up and update release workflow

* add comment

* publish kinds only on cue updates

pkg/cuectx/load.go

@@ -136,6 +136,9 @@ func LoadGrafanaInstance(relpath string, pkg string, overlay fs.FS) (*build.Inst
 		if err != nil {
 			return nil, err
 		}
+
+		// merge the kindsys filesystem with ours for the kind categories
+		f = merged_fs.NewMergedFS(kindsys.CueSchemaFS, f)
 	}
 
 	if pkg != "" {