feat(core): add address fields to ContactForm

frontend/src/pages/ContactForm.tsx

@@ -19,6 +19,11 @@ const contactSchema = z.object({
   email: z.string().email('Ungültige E-Mail-Adresse').max(255).optional().or(z.literal('')),
   phone: z.string().max(30).optional().or(z.literal('')),
   position: z.string().max(100).optional().or(z.literal('')),
+  address_street: z.string().max(255).optional().or(z.literal('')),
+  address_city: z.string().max(100).optional().or(z.literal('')),
+  address_zip: z.string().max(20).optional().or(z.literal('')),
+  address_country: z.string().max(2).optional().or(z.literal('')),
+  address_state: z.string().max(100).optional().or(z.literal('')),
 });
 
 type ContactFormValues = z.infer<typeof contactSchema>;
@@ -49,6 +54,11 @@ export function ContactFormPage() {
       email: '',
       phone: '',
       position: '',
+      address_street: '',
+      address_city: '',
+      address_zip: '',
+      address_country: '',
+      address_state: '',
     },
   });
 
@@ -60,6 +70,11 @@ export function ContactFormPage() {
         email: contact.email || '',
         phone: contact.phone || '',
         position: contact.position || '',
+        address_street: (contact as any).address_street || '',
+        address_city: (contact as any).address_city || '',
+        address_zip: (contact as any).address_zip || '',
+        address_country: (contact as any).address_country || '',
+        address_state: (contact as any).address_state || '',
       });
       setSelectedCompanyIds(contact.company_ids || (contact.companies?.map((c) => c.id) || []));
     }
@@ -165,6 +180,42 @@ export function ContactFormPage() {
           />
         </Card>
 
+        <Card title={t('address.title')}>
+          <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+            <Input
+              {...register('address_street')}
+              label={t('address.street')}
+              error={errors.address_street?.message}
+              placeholder="Musterstraße 1"
+            />
+            <Input
+              {...register('address_city')}
+              label={t('address.city')}
+              error={errors.address_city?.message}
+              placeholder="Berlin"
+            />
+            <Input
+              {...register('address_zip')}
+              label={t('address.zip')}
+              error={errors.address_zip?.message}
+              placeholder="10115"
+            />
+            <Input
+              {...register('address_country')}
+              label={t('address.country')}
+              error={errors.address_country?.message}
+              placeholder="DE"
+              maxLength={2}
+            />
+            <Input
+              {...register('address_state')}
+              label={t('address.state')}
+              error={errors.address_state?.message}
+              placeholder="Berlin"
+            />
+          </div>
+        </Card>
+
         <Card title={t('contacts.assignCompanies')}>
           {availableCompanies.length === 0 ? (
             <p className="text-sm text-secondary-500">{t('companies.emptyTitle')}</p>