feat: Equipment-System, Buchungsbearbeitung, Kundenadresse, LexOffice-Fix

- Vintage Modell hinzugefuegt
- Equipment Multi-Select (Neue Buchung + Bearbeitung)
- Kundenadresse in Formularen
- Bearbeiten-Seite fuer Buchungen
- Abbau-Zeiten in Formularen und Uebersicht
- Vertrag PDF nur bei Privatkunden
- LexOffice Kontakt-Erstellung Fix (BUSINESS)
- Zurueck-Pfeil auf Touren-Seite

app/api/bookings/[id]/debug/route.ts

@@ -0,0 +1,111 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { getServerSession } from 'next-auth';
+import { authOptions } from '@/lib/auth';
+import { prisma } from '@/lib/prisma';
+
+export async function GET(
+  request: NextRequest,
+  { params }: { params: { id: string } }
+) {
+  try {
+    const session = await getServerSession(authOptions);
+
+    if (!session || session.user.role !== 'ADMIN') {
+      return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
+    }
+
+    const bookingId = params.id;
+
+    const booking = await prisma.booking.findUnique({
+      where: { id: bookingId },
+      include: {
+        location: true,
+        photobox: true,
+        bookingEquipment: {
+          include: {
+            equipment: true,
+          },
+        },
+      },
+    });
+
+    if (!booking) {
+      return NextResponse.json({ error: 'Buchung nicht gefunden' }, { status: 404 });
+    }
+
+    let priceConfig = null;
+    if (booking.photobox?.model && booking.locationId) {
+      priceConfig = await prisma.priceConfig.findUnique({
+        where: {
+          locationId_model: {
+            locationId: booking.locationId,
+            model: booking.photobox.model,
+          },
+        },
+      });
+    }
+
+    const lineItems: any[] = [];
+    const withPrintFlat = booking.withPrintFlat !== false;
+
+    // Photobox LineItem
+    const photoboxArticleId = withPrintFlat 
+      ? (priceConfig?.lexofficeArticleIdWithFlat || priceConfig?.lexofficeArticleId)
+      : priceConfig?.lexofficeArticleId;
+
+    const boxName = booking.photobox?.model || 'Fotobox';
+    const flatSuffix = withPrintFlat ? ' mit Druckflatrate' : ' (nur digital)';
+
+    const photoboxItem: any = {
+      type: (photoboxArticleId && photoboxArticleId.trim()) ? 'material' : 'custom',
+      quantity: 1,
+      unitName: 'Stück',
+      name: `${boxName}${flatSuffix}`,
+    };
+
+    if (photoboxArticleId && photoboxArticleId.trim()) {
+      photoboxItem.id = photoboxArticleId;
+    } else {
+      photoboxItem.description = `Event am ${new Date(booking.eventDate).toLocaleDateString('de-DE')} in ${booking.eventCity}`;
+      photoboxItem.unitPrice = {
+        currency: 'EUR',
+        netAmount: priceConfig?.basePrice || 1,
+        taxRatePercentage: 19,
+      };
+    }
+
+    lineItems.push(photoboxItem);
+
+    return NextResponse.json({
+      booking: {
+        id: booking.id,
+        bookingNumber: booking.bookingNumber,
+        locationId: booking.locationId,
+        photoboxModel: booking.photobox?.model,
+        withPrintFlat: booking.withPrintFlat,
+        distance: booking.distance,
+      },
+      priceConfig: priceConfig ? {
+        id: priceConfig.id,
+        basePrice: priceConfig.basePrice,
+        kmFlatRate: priceConfig.kmFlatRate,
+        kmFlatRateUpTo: priceConfig.kmFlatRateUpTo,
+        pricePerKm: priceConfig.pricePerKm,
+        kmMultiplier: priceConfig.kmMultiplier,
+        lexofficeArticleId: priceConfig.lexofficeArticleId,
+        lexofficeArticleIdWithFlat: priceConfig.lexofficeArticleIdWithFlat,
+        lexofficeKmFlatArticleId: priceConfig.lexofficeKmFlatArticleId,
+        lexofficeKmExtraArticleId: priceConfig.lexofficeKmExtraArticleId,
+      } : null,
+      lineItems,
+      photoboxArticleId,
+    });
+
+  } catch (error: any) {
+    console.error('❌ Debug Fehler:', error);
+    return NextResponse.json(
+      { error: error.message, stack: error.stack },
+      { status: 500 }
+    );
+  }
+}