seperate delivery and billig adresses in contract added

frontend/src/pages/contracts/ContractDetail.tsx

@@ -1833,9 +1833,9 @@ export default function ContractDetail() {
       )}
 
       {/* Linked Data */}
-      <div className="grid grid-cols-1 lg:grid-cols-3 gap-6 mb-6">
+      <div className="grid grid-cols-1 lg:grid-cols-4 gap-6 mb-6">
         {c.address && (
-          <Card title="Adresse">
+          <Card title="Lieferadresse">
             <CopyableBlock
               values={[
                 `${c.address.street} ${c.address.houseNumber}`,
@@ -1853,6 +1853,35 @@ export default function ContractDetail() {
             </CopyableBlock>
           </Card>
         )}
+        {/* Rechnungsadresse: Falls nicht gesetzt, Lieferadresse anzeigen */}
+        {(c.billingAddress || c.address) && (
+          <Card title="Rechnungsadresse">
+            {(() => {
+              const addr = c.billingAddress || c.address;
+              if (!addr) return null;
+              return (
+                <CopyableBlock
+                  values={[
+                    `${addr.street} ${addr.houseNumber}`,
+                    `${addr.postalCode} ${addr.city}`,
+                    addr.country
+                  ]}
+                >
+                  <p>
+                    {addr.street} {addr.houseNumber}
+                  </p>
+                  <p>
+                    {addr.postalCode} {addr.city}
+                  </p>
+                  <p className="text-gray-500">{addr.country}</p>
+                  {!c.billingAddress && c.address && (
+                    <p className="text-xs text-gray-400 mt-1">(wie Lieferadresse)</p>
+                  )}
+                </CopyableBlock>
+              );
+            })()}
+          </Card>
+        )}
         {c.bankCard && (
           <Card title="Bankkarte">
             <p className="font-medium">{c.bankCard.accountHolder}</p>

frontend/src/pages/contracts/ContractForm.tsx

@@ -207,6 +207,7 @@ export default function ContractForm() {
         type: c.type,
         status: c.status,
         addressId: c.addressId?.toString() || '',
+        billingAddressId: c.billingAddressId?.toString() || '',
         bankCardId: c.bankCardId?.toString() || '',
         identityDocumentId: c.identityDocumentId?.toString() || '',
         salesPlatformId: c.salesPlatformId?.toString() || '',
@@ -422,6 +423,7 @@ export default function ContractForm() {
       contractCategoryId: selectedCategory.id,
       status: data.status,
       addressId: safeParseInt(data.addressId) ?? null,
+      billingAddressId: safeParseInt(data.billingAddressId) ?? null,
       bankCardId: safeParseInt(data.bankCardId) ?? null,
       identityDocumentId: safeParseInt(data.identityDocumentId) ?? null,
       salesPlatformId: safeParseInt(data.salesPlatformId) ?? null,
@@ -658,16 +660,31 @@ export default function ContractForm() {
 
         {customerId && (
           <Card className="mb-6" title="Kundendaten verknüpfen">
-            <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
+            <div className="grid grid-cols-1 md:grid-cols-2 gap-4 mb-4">
               <Select
-                label="Adresse"
+                label="Lieferadresse"
                 {...register('addressId')}
-                options={addresses.map((a) => ({
-                  value: a.id,
-                  label: `${a.street} ${a.houseNumber}, ${a.postalCode} ${a.city} (${a.type === 'BILLING' ? 'Rechnung' : 'Liefer'})`,
-                }))}
+                options={addresses
+                  .filter((a) => a.type === 'DELIVERY_RESIDENCE')
+                  .map((a) => ({
+                    value: a.id,
+                    label: `${a.street} ${a.houseNumber}, ${a.postalCode} ${a.city}`,
+                  }))}
               />
 
+              <Select
+                label="Rechnungsadresse"
+                {...register('billingAddressId')}
+                options={addresses
+                  .filter((a) => a.type === 'BILLING')
+                  .map((a) => ({
+                    value: a.id,
+                    label: `${a.street} ${a.houseNumber}, ${a.postalCode} ${a.city}`,
+                  }))}
+                placeholder="Wie Lieferadresse"
+              />
+            </div>
+            <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
               <Select
                 label="Bankkarte"
                 {...register('bankCardId')}

frontend/src/types/index.ts

@@ -274,6 +274,8 @@ export interface Contract {
   status: ContractStatus;
   addressId?: number;
   address?: Address;
+  billingAddressId?: number;
+  billingAddress?: Address;
   bankCardId?: number;
   bankCard?: BankCard;
   identityDocumentId?: number;