feat(backend): Lagerbehälter-Umlagerung für Honigchargen (Modul 32)

Neues HoneyBatchRelocation-Modell dokumentiert jede Umlagerung einer
Honigcharge zwischen Lagerbehältern (von/nach, Zeitpunkt, Benutzer,
Notiz). HoneyBatchesService.relocate() aktualisiert
HoneyBatch.storageContainerId transaktional zusammen mit dem
Historieneintrag; wirft NotFoundException bei unbekanntem Zielbehälter.

Neue Endpunkte: POST /honey-batches/:id/relocate,
GET /honey-batches/:id/relocations. honeyBatchInclude liefert jetzt
zusätzlich den aktuell zugeordneten storageContainer mit.

Unit- und E2E-Tests ergänzt (Mehrfachumlagerung, Historienreihenfolge,
404 bei unbekanntem Behälter). Migration auf Dev- und Test-Datenbank
angewendet.

ApiCore-Backend/src/honey-batches/honey-batches.service.ts

@@ -5,9 +5,11 @@ import { WebhooksService } from '../webhooks/webhooks.service';
 import { HoneyBatchStatus } from '../../generated/prisma';
 import { CreateHoneyBatchDto } from './dto/create-honey-batch.dto';
 import { CreateHoneyMeasurementDto } from './dto/create-honey-measurement.dto';
+import { RelocateHoneyBatchDto } from './dto/relocate-honey-batch.dto';
 
 const honeyBatchInclude = {
   measurements: true,
+  storageContainer: true,
   extraction: {
     include: {
       harvests: {
@@ -90,6 +92,50 @@ export class HoneyBatchesService {
     return this.findById(id);
   }
 
+  async relocate(id: string, dto: RelocateHoneyBatchDto, actingUserId: string) {
+    const honeyBatch = await this.findById(id);
+    const targetContainer = await this.prisma.storageContainer.findUnique({
+      where: { id: dto.storageContainerId },
+    });
+    if (!targetContainer) {
+      throw new NotFoundException('Storage container not found');
+    }
+
+    const relocation = await this.prisma.$transaction(async (tx) => {
+      const created = await tx.honeyBatchRelocation.create({
+        data: {
+          honeyBatchId: id,
+          fromStorageContainerId: honeyBatch.storageContainerId,
+          toStorageContainerId: dto.storageContainerId,
+          userId: actingUserId,
+          notes: dto.notes,
+        },
+      });
+      await tx.honeyBatch.update({
+        where: { id },
+        data: { storageContainerId: dto.storageContainerId },
+      });
+      return created;
+    });
+    await this.auditLog.record({
+      entityType: 'HoneyBatchRelocation',
+      entityId: relocation.id,
+      action: 'CREATE',
+      userId: actingUserId,
+      afterData: relocation,
+    });
+    return this.findById(id);
+  }
+
+  async findRelocations(id: string) {
+    await this.findById(id);
+    return this.prisma.honeyBatchRelocation.findMany({
+      where: { honeyBatchId: id },
+      include: { fromStorageContainer: true, toStorageContainer: true },
+      orderBy: { relocatedAt: 'desc' },
+    });
+  }
+
   async traceability(id: string) {
     const honeyBatch = await this.findById(id);
     return {