K8s/Dashboards: Generate Dashboards k8s APIs using Grafana App SDK (#99966)

* Generate Dashboard kinds with `grafana-app-sdk`

Signed-off-by: Igor Suleymanov <igor.suleymanov@grafana.com>

* Hack together a fix for invalid TS codegen for v0 & v1

Signed-off-by: Igor Suleymanov <igor.suleymanov@grafana.com>

* Address Go linter issues

Signed-off-by: Igor Suleymanov <igor.suleymanov@grafana.com>

* Address TS linter issues

Signed-off-by: Igor Suleymanov <igor.suleymanov@grafana.com>

* Add new app to CODEOWNERS

Signed-off-by: Igor Suleymanov <igor.suleymanov@grafana.com>

* Fix a couple of issues detected by tests

Signed-off-by: Igor Suleymanov <igor.suleymanov@grafana.com>

* Update OpenAPI definitions and test files

Signed-off-by: Igor Suleymanov <igor.suleymanov@grafana.com>

* Remove title from Dashboard v1alpha1 spec

Signed-off-by: Igor Suleymanov <igor.suleymanov@grafana.com>

* Remove unused CUE schemas

Signed-off-by: Igor Suleymanov <igor.suleymanov@grafana.com>

* remove unrelated files

* allow any in the generated betterer

* Add a comment explaining why we don't use deepcopy-gen

Signed-off-by: Igor Suleymanov <igor.suleymanov@grafana.com>

* Default to v2alpha1 if dashboards v2 FF is enabled

Signed-off-by: Igor Suleymanov <igor.suleymanov@grafana.com>

---------

Signed-off-by: Igor Suleymanov <igor.suleymanov@grafana.com>
Co-authored-by: Ryan McKinley <ryantxu@gmail.com>

pkg/registry/apis/dashboard/mutate.go

@@ -38,10 +38,7 @@ func (b *DashboardsAPIBuilder) Mutate(ctx context.Context, a admission.Attribute
 			internalID = int64(id)
 		}
 	case *dashboardV2.Dashboard:
-		if id, ok := v.Spec.Object["id"].(float64); ok {
-			delete(v.Spec.Object, "id")
-			internalID = int64(id)
-		}
+		// Noop for V2
 	default:
 		return fmt.Errorf("mutation error: expected to dashboard, got %T", obj)
 	}