feat(MemberOrder): add budget field to MemberOrder and MemberOrderHistory models

- Introduced a new budget field in both MemberOrder and MemberOrderHistory models to track budget amounts.
- Updated memberOrderService to handle budget in serialization and normalization processes.
- Enhanced OrdersPanel component to include budget input and display in the UI.
- Added German localization for the new budget term to ensure consistency across languages.

frontend/src/components/OrdersPanel.vue

@@ -40,6 +40,10 @@
                     <span>{{ $t('orders.paid') }}</span>
                     <input v-model="newOrder.paidAmount" type="number" min="0" step="0.01">
                 </label>
+                <label>
+                    <span>{{ $t('orders.budget') }}</span>
+                    <input v-model="newOrder.budget" type="number" min="0" step="0.01">
+                </label>
                 <label>
                     <span>{{ $t('orders.status') }}</span>
                     <select v-model="newOrder.status">
@@ -75,6 +79,7 @@
                         <th>{{ $t('orders.statusDate') }}</th>
                         <th>{{ $t('orders.cost') }}</th>
                         <th>{{ $t('orders.paid') }}</th>
+                        <th>{{ $t('orders.budget') }}</th>
                         <th>{{ $t('orders.open') }}</th>
                         <th>{{ $t('orders.history') }}</th>
                         <th>{{ $t('common.save') }}</th>
@@ -102,6 +107,9 @@
                         <td>
                             <input v-model="order.draftPaidAmount" type="number" min="0" step="0.01" class="orders-inline-input orders-inline-input-number">
                         </td>
+                        <td>
+                            <input v-model="order.draftBudget" type="number" min="0" step="0.01" class="orders-inline-input orders-inline-input-number">
+                        </td>
                         <td>{{ formatCurrency(calculateOpenAmount(order)) }}</td>
                         <td>
                             <details class="orders-history-details">
@@ -110,7 +118,7 @@
                                     <div v-for="entry in order.historyEntries || []" :key="entry.id" class="orders-history-entry">
                                         <strong>{{ statusLabel(entry.status) }}</strong>
                                         <span>{{ formatDateTime(entry.changedAt) }}</span>
-                                        <span>{{ formatCurrency(entry.cost) }} / {{ formatCurrency(entry.paidAmount) }}</span>
+                                        <span>{{ formatCurrency(entry.cost) }} / {{ formatCurrency(entry.paidAmount) }} / {{ formatCurrency(entry.budget) }}</span>
                                     </div>
                                 </div>
                             </details>
@@ -181,7 +189,8 @@ export default {
                 item: '',
                 status: 'requested',
                 cost: '',
-                paidAmount: ''
+                paidAmount: '',
+                budget: ''
             }
         };
     },
@@ -251,7 +260,8 @@ export default {
                 draftItem: order.item || '',
                 draftStatus: order.status || 'requested',
                 draftCost: String(normalizeAmount(order.cost)),
-                draftPaidAmount: String(normalizeAmount(order.paidAmount))
+                draftPaidAmount: String(normalizeAmount(order.paidAmount)),
+                draftBudget: String(normalizeAmount(order.budget))
             };
         },
         async loadOrders() {
@@ -285,7 +295,8 @@ export default {
                     item: this.newOrder.item.trim(),
                     status: this.newOrder.status,
                     cost: normalizeAmount(this.newOrder.cost),
-                    paidAmount: normalizeAmount(this.newOrder.paidAmount)
+                    paidAmount: normalizeAmount(this.newOrder.paidAmount),
+                    budget: normalizeAmount(this.newOrder.budget)
                 });
                 if (response.data?.order) {
                     this.orders.unshift(this.hydrateOrder(response.data.order));
@@ -293,7 +304,8 @@ export default {
                         item: '',
                         status: 'requested',
                         cost: '',
-                        paidAmount: ''
+                        paidAmount: '',
+                        budget: ''
                     };
                 }
             } catch (error) {
@@ -306,7 +318,8 @@ export default {
             return order.draftItem !== (order.item || '')
                 || order.draftStatus !== order.status
                 || normalizeAmount(order.draftCost) !== normalizeAmount(order.cost)
-                || normalizeAmount(order.draftPaidAmount) !== normalizeAmount(order.paidAmount);
+                || normalizeAmount(order.draftPaidAmount) !== normalizeAmount(order.paidAmount)
+                || normalizeAmount(order.draftBudget) !== normalizeAmount(order.budget);
         },
         async saveOrder(order) {
             this.savingOrderIds.push(order.id);
@@ -316,7 +329,8 @@ export default {
                     item: order.draftItem,
                     status: order.draftStatus,
                     cost: normalizeAmount(order.draftCost),
-                    paidAmount: normalizeAmount(order.draftPaidAmount)
+                    paidAmount: normalizeAmount(order.draftPaidAmount),
+                    budget: normalizeAmount(order.draftBudget)
                 });
                 if (response.data?.order) {
                     const updated = this.hydrateOrder(response.data.order);

frontend/src/i18n/locales/de.json

@@ -457,6 +457,7 @@
     "statusHandedOver": "Artikel ausgehändigt",
     "cost": "Kosten",
     "paid": "Bezahlt",
+    "budget": "Budget",
     "open": "Noch offen",
     "history": "Verlauf",
     "orderDate": "Erfasst am",