Scuemata: Add test to validate devenv resources (#35810)

* Add test for devenv resources

* Refactor validation tests for grokkability

* Devenv dashboards error-tracking script

* Refactor to use cueerrors.Details()

* Further test refinement

* Close major elements of dashboard schema

* Centralize dashboard validation tests

General dashboard validation testing belongs in the load package.

* Better names for error context on glue CUE code

* Fixup validate-resource

Do only one of base or dist, and fix copied docs.

* Skip the devenv test

* Remove test for validateResources

* Fix shellcheck

* Backend linter

Co-authored-by: sam boyer <sdboyer@grafana.com>

pkg/cmd/grafana-cli/commands/commands.go

@@ -142,13 +142,18 @@ var cueCommands = []*cli.Command{
 	},
 	{
 		Name:   "validate-resource",
-		Usage:  "validate *.cue files in the project",
+		Usage:  "validate resource files (e.g. dashboard JSON) against schema",
 		Action: runPluginCommand(cmd.validateResources),
 		Flags: []cli.Flag{
 			&cli.StringFlag{
 				Name:  "dashboard",
 				Usage: "dashboard JSON file to validate",
 			},
+			&cli.BoolFlag{
+				Name:  "base-only",
+				Usage: "validate using only base schema, not dist (includes plugin schema)",
+				Value: false,
+			},
 		},
 	},
 }