feat: add current events section for equipment with dynamic status calculation

em2rp/lib/services/event_preparation_service_extended.dart

@@ -1,6 +1,7 @@
 import 'package:cloud_firestore/cloud_firestore.dart';
 import 'package:em2rp/models/event_model.dart';
 import 'package:em2rp/models/equipment_model.dart';
+import 'package:em2rp/services/equipment_status_calculator.dart';
 
 /// Service étendu pour gérer les 4 étapes : Préparation, Chargement, Déchargement, Retour
 class EventPreparationServiceExtended {
@@ -59,6 +60,9 @@ class EventPreparationServiceExtended {
         'assignedEquipment': updatedEquipment.map((e) => e.toMap()).toList(),
         'loadingStatus': loadingStatusToString(LoadingStatus.completed),
       });
+
+      // Invalider le cache des statuts d'équipement
+      EquipmentStatusCalculator.invalidateGlobalCache();
     } catch (e) {
       print('Error validating all loading: $e');
       rethrow;
@@ -115,6 +119,9 @@ class EventPreparationServiceExtended {
         'assignedEquipment': updatedEquipment.map((e) => e.toMap()).toList(),
         'unloadingStatus': unloadingStatusToString(UnloadingStatus.completed),
       });
+
+      // Invalider le cache des statuts d'équipement
+      EquipmentStatusCalculator.invalidateGlobalCache();
     } catch (e) {
       print('Error validating all unloading: $e');
       rethrow;