Dashboards: Add values recommendations support for AdHocFilters and GroupBy variables (#114849)

* drilldown recommendations

* cleanup + tests

* refactor

* canary scenes

* update type

* canary scenes

* refactor types

* refactor

* do not pass userId

* canary scenes

* canary scenes

* bump scenes

* export recomendation type

pkg/services/featuremgmt/registry.go

@@ -600,6 +600,13 @@ var (
 			FrontendOnly: true,
 			Owner:        grafanaDashboardsSquad,
 		},
+		{
+			Name:         "drilldownRecommendations",
+			Description:  "Enables showing recently used drilldowns or recommendations given by the datasource in the AdHocFilters and GroupBy variables",
+			Stage:        FeatureStageExperimental,
+			FrontendOnly: true,
+			Owner:        grafanaDashboardsSquad,
+		},
 		{
 			Name:         "perPanelNonApplicableDrilldowns",
 			Description:  "Enables viewing non-applicable drilldowns on a panel level",

pkg/services/featuremgmt/toggles_gen.csv

@@ -83,6 +83,7 @@ dashboardNewLayouts,experimental,@grafana/dashboards-squad,false,false,false
 kubernetesDashboardsV2,experimental,@grafana/dashboards-squad,false,false,false
 dashboardUndoRedo,experimental,@grafana/dashboards-squad,false,false,true
 unlimitedLayoutsNesting,experimental,@grafana/dashboards-squad,false,false,true
+drilldownRecommendations,experimental,@grafana/dashboards-squad,false,false,true
 perPanelNonApplicableDrilldowns,experimental,@grafana/dashboards-squad,false,false,true
 panelGroupBy,experimental,@grafana/dashboards-squad,false,false,true
 perPanelFiltering,experimental,@grafana/dashboards-squad,false,false,true

pkg/services/featuremgmt/toggles_gen.json

@@ -1181,6 +1181,19 @@
         "codeowner": "@grafana/grafana-datasources-core-services"
       }
     },
+    {
+      "metadata": {
+        "name": "drilldownRecommendations",
+        "resourceVersion": "1764855550769",
+        "creationTimestamp": "2025-12-04T13:39:10Z"
+      },
+      "spec": {
+        "description": "Enables showing recently used drilldowns or recommendations given by the datasource in the AdHocFilters and GroupBy variables",
+        "stage": "experimental",
+        "codeowner": "@grafana/dashboards-squad",
+        "frontend": true
+      }
+    },
     {
       "metadata": {
         "name": "elasticsearchCrossClusterSearch",