fix(access): expose master data maintenance queue

vehicle-data-platform/apps/api/internal/platform/access.go

@@ -132,6 +132,9 @@ func (s *Service) AccessSummary(ctx context.Context, query AccessQuery) (AccessS
 		case "degraded":
 			result.DegradedVehicles++
 		}
+		if len(row.MasterDataIssues) > 0 {
+			result.MasterDataIncompleteVehicles++
+		}
 		switch row.OnlineState {
 		case "online":
 			result.OnlineVehicles++
@@ -502,7 +505,11 @@ func keepAccessRow(row AccessVehicleRow, query AccessQuery) bool {
 		return false
 	}
 	if value := strings.TrimSpace(query.ConnectionState); value != "" && value != "all" {
-		if value == "attention" {
+		if value == "master_data" {
+			if len(row.MasterDataIssues) == 0 {
+				return false
+			}
+		} else if value == "attention" {
 			if row.ConnectionState == "healthy" {
 				return false
 			}