add active runways and the arrival mode

src/airport/models/airport.model.ts

@@ -51,6 +51,18 @@ export class Airport {
     type: PlanningSchema,
   })
   planning: Planning;
+
+  @Prop({
+    type: [String],
+  })
+  activeRunways: string[];
+
+  @Prop({
+    enum: ['STAGGERED', 'IPA'],
+    default: 'STAGGERED',
+    type: String,
+  })
+  arrivalMode: string;
 }
 
 export const AirportSchema = SchemaFactory.createForClass(Airport);