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/admin/sync-emails/route.ts

@@ -0,0 +1,108 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { getServerSession } from 'next-auth';
+import { authOptions } from '@/lib/auth';
+import { emailSyncService } from '@/lib/email-sync';
+import { prisma } from '@/lib/prisma';
+
+export async function POST(request: NextRequest) {
+  try {
+    const session = await getServerSession(authOptions);
+
+    if (!session || session.user.role !== 'ADMIN') {
+      return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
+    }
+
+    const { locationId } = await request.json();
+
+    if (locationId) {
+      // Sync specific location
+      console.log(`🔄 Starte E-Mail-Sync für Location: ${locationId}`);
+      const result = await emailSyncService.syncLocationEmails(locationId);
+      
+      return NextResponse.json({
+        success: result.success,
+        location: locationId,
+        newEmails: result.newEmails,
+        newBookings: result.newBookings,
+        errors: result.errors,
+      });
+    } else {
+      // Sync all locations
+      console.log('🔄 Starte E-Mail-Sync für alle Locations...');
+      
+      const locations = await prisma.location.findMany({
+        where: { emailSyncEnabled: true },
+        select: { id: true, name: true },
+      });
+
+      const results = [];
+      
+      for (const location of locations) {
+        console.log(`📍 Sync: ${location.name}`);
+        const result = await emailSyncService.syncLocationEmails(location.id);
+        results.push({
+          locationId: location.id,
+          locationName: location.name,
+          ...result,
+        });
+      }
+
+      const totalNewEmails = results.reduce((sum, r) => sum + r.newEmails, 0);
+      const totalNewBookings = results.reduce((sum, r) => sum + r.newBookings, 0);
+
+      return NextResponse.json({
+        success: true,
+        totalLocations: locations.length,
+        totalNewEmails,
+        totalNewBookings,
+        results,
+      });
+    }
+  } catch (error: any) {
+    console.error('❌ E-Mail-Sync Fehler:', error);
+    return NextResponse.json(
+      { error: error.message || 'E-Mail-Sync fehlgeschlagen' },
+      { status: 500 }
+    );
+  }
+}
+
+export async function GET(request: NextRequest) {
+  try {
+    const session = await getServerSession(authOptions);
+
+    if (!session || session.user.role !== 'ADMIN') {
+      return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
+    }
+
+    // Get sync status for all locations
+    const locations = await prisma.location.findMany({
+      select: {
+        id: true,
+        name: true,
+        slug: true,
+        emailSyncEnabled: true,
+        lastEmailSync: true,
+        imapHost: true,
+        imapUser: true,
+      },
+    });
+
+    const status = locations.map(loc => ({
+      id: loc.id,
+      name: loc.name,
+      slug: loc.slug,
+      syncEnabled: loc.emailSyncEnabled,
+      configured: !!(loc.imapHost && loc.imapUser),
+      lastSync: loc.lastEmailSync,
+    }));
+
+    return NextResponse.json({ locations: status });
+  } catch (error: any) {
+    console.error('❌ Fehler beim Abrufen des Sync-Status:', error);
+    return NextResponse.json(
+      { error: error.message || 'Fehler beim Abrufen des Status' },
+      { status: 500 }
+    );
+  }
+}