CloudMigration: Provide a stats rollup in the GetSnapshot response (#90252)

* order session list descending

* add snapshot status method to store

* query stats while retrieving snapshot

* return stats in dto

* swagger

* fix tests

* commit results of bingo get

* fix swagger

* minor improvement

* fix typo

* forgot a file

pkg/services/cloudmigration/cloudmigrationimpl/xorm_store_test.go

@@ -25,7 +25,7 @@ func Test_GetAllCloudMigrationSessions(t *testing.T) {
 	ctx := context.Background()
 
 	t.Run("get all cloud_migration_session entries", func(t *testing.T) {
-		value, err := s.GetAllCloudMigrationSessions(ctx)
+		value, err := s.GetCloudMigrationSessionList(ctx)
 		require.NoError(t, err)
 		require.Equal(t, 3, len(value))
 		for _, m := range value {
@@ -245,6 +245,19 @@ func Test_SnapshotResources(t *testing.T) {
 			}
 		}
 
+		// check stats
+		stats, err := s.GetSnapshotResourceStats(ctx, "poiuy")
+		assert.NoError(t, err)
+		assert.Equal(t, map[cloudmigration.MigrateDataType]int{
+			cloudmigration.DatasourceDataType: 2,
+			cloudmigration.DashboardDataType:  1,
+			cloudmigration.FolderDataType:     1,
+		}, stats.CountsByType)
+		assert.Equal(t, map[cloudmigration.ItemStatus]int{
+			cloudmigration.ItemStatusOK:      3,
+			cloudmigration.ItemStatusPending: 1,
+		}, stats.CountsByStatus)
+
 		// delete snapshot resources
 		err = s.DeleteSnapshotResources(ctx, "poiuy")
 		assert.NoError(t, err)