feat(MemberOrder, MemberOrderHistory, MemberOrderService, OrdersPanel): add paidConfirmed field and update related logic

- Introduced a new boolean field `paidConfirmed` in MemberOrder and MemberOrderHistory models to track payment confirmation status.
- Updated serialization functions in MemberOrderService to include `paidConfirmed` in order and history entries.
- Enhanced OrdersPanel component to allow users to set and display the `paidConfirmed` status for orders.
- Added localization support for the new `paidConfirmed` label in German.
- Adjusted related logic to ensure proper handling of the `paidConfirmed` state throughout the application.

frontend/src/components/OrdersPanel.vue

@@ -53,6 +53,10 @@
                     <span>{{ $t('orders.budget') }}</span>
                     <input v-model="newOrder.budget" type="number" min="0" step="0.01">
                 </label>
+                <label class="orders-checkbox-label">
+                    <span>{{ $t('orders.paidConfirmed') }}</span>
+                    <input v-model="newOrder.paidConfirmed" type="checkbox">
+                </label>
                 <label>
                     <span>{{ $t('orders.status') }}</span>
                     <select v-model="newOrder.status">
@@ -88,6 +92,7 @@
                         <th>{{ $t('orders.statusDate') }}</th>
                         <th>{{ $t('orders.cost') }}</th>
                         <th>{{ $t('orders.paid') }}</th>
+                        <th>{{ $t('orders.paidConfirmed') }}</th>
                         <th>{{ $t('orders.budget') }}</th>
                         <th>{{ $t('orders.open') }}</th>
                         <th>{{ $t('orders.history') }}</th>
@@ -116,6 +121,9 @@
                         <td>
                             <input v-model="order.draftPaidAmount" type="number" min="0" step="0.01" class="orders-inline-input orders-inline-input-number">
                         </td>
+                        <td class="orders-cell-center">
+                            <input v-model="order.draftPaidConfirmed" type="checkbox">
+                        </td>
                         <td>
                             <input v-model="order.draftBudget" type="number" min="0" step="0.01" class="orders-inline-input orders-inline-input-number">
                         </td>
@@ -127,7 +135,7 @@
                                     <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) }} / {{ formatCurrency(entry.budget) }}</span>
+                                        <span>{{ formatCurrency(entry.cost) }} / {{ formatCurrency(entry.paidAmount) }} / {{ entry.paidConfirmed ? 'bezahlt' : 'offen' }} / {{ formatCurrency(entry.budget) }}</span>
                                     </div>
                                 </div>
                             </details>
@@ -209,7 +217,8 @@ export default {
                 status: 'requested',
                 cost: '',
                 paidAmount: '',
-                budget: ''
+                budget: '',
+                paidConfirmed: false
             }
         };
     },
@@ -237,12 +246,9 @@ export default {
                 if (this.clubFilter && String(order.clubId) !== String(this.clubFilter)) {
                     return false;
                 }
-                const cost = normalizeAmount(order.cost);
-                const paidAmount = normalizeAmount(order.paidAmount);
-                const openAmount = Math.max(0, Number((cost - paidAmount).toFixed(2)));
-                const isPaid = cost > 0 && openAmount <= 0;
+                const isPaid = Boolean(order.paidConfirmed);
                 const isHandedOver = order.status === 'handed_over';
-                const isCompleted = isPaid || isHandedOver;
+                const isCompleted = isPaid && isHandedOver;
                 if (!this.showCompleted && isCompleted) {
                     return false;
                 }
@@ -296,6 +302,7 @@ export default {
                 draftStatus: order.status || 'requested',
                 draftCost: String(normalizeAmount(order.cost)),
                 draftPaidAmount: String(normalizeAmount(order.paidAmount)),
+                draftPaidConfirmed: Boolean(order.paidConfirmed),
                 draftBudget: String(normalizeAmount(order.budget))
             };
         },
@@ -331,7 +338,8 @@ export default {
                     status: this.newOrder.status,
                     cost: normalizeAmount(this.newOrder.cost),
                     paidAmount: normalizeAmount(this.newOrder.paidAmount),
-                    budget: normalizeAmount(this.newOrder.budget)
+                    budget: normalizeAmount(this.newOrder.budget),
+                    paidConfirmed: Boolean(this.newOrder.paidConfirmed)
                 });
                 if (response.data?.order) {
                     this.orders.unshift(this.hydrateOrder(response.data.order));
@@ -340,7 +348,8 @@ export default {
                         status: 'requested',
                         cost: '',
                         paidAmount: '',
-                        budget: ''
+                        budget: '',
+                        paidConfirmed: false
                     };
                 }
             } catch (error) {
@@ -354,6 +363,7 @@ export default {
                 || order.draftStatus !== order.status
                 || normalizeAmount(order.draftCost) !== normalizeAmount(order.cost)
                 || normalizeAmount(order.draftPaidAmount) !== normalizeAmount(order.paidAmount)
+                || Boolean(order.draftPaidConfirmed) !== Boolean(order.paidConfirmed)
                 || normalizeAmount(order.draftBudget) !== normalizeAmount(order.budget);
         },
         async saveOrder(order) {
@@ -365,7 +375,8 @@ export default {
                     status: order.draftStatus,
                     cost: normalizeAmount(order.draftCost),
                     paidAmount: normalizeAmount(order.draftPaidAmount),
-                    budget: normalizeAmount(order.draftBudget)
+                    budget: normalizeAmount(order.draftBudget),
+                    paidConfirmed: Boolean(order.draftPaidConfirmed)
                 });
                 if (response.data?.order) {
                     const updated = this.hydrateOrder(response.data.order);
@@ -434,6 +445,23 @@ export default {
     color: var(--text-color);
 }
 
+.orders-checkbox-label {
+    display: flex;
+    flex-direction: column;
+    justify-content: flex-end;
+    gap: 0.35rem;
+}
+
+.orders-checkbox-label input[type='checkbox'],
+.orders-cell-center input[type='checkbox'] {
+    width: 1.05rem;
+    height: 1.05rem;
+}
+
+.orders-cell-center {
+    text-align: center;
+}
+
 .orders-filters {
     justify-content: flex-start;
     flex: 1;

frontend/src/i18n/locales/de.json

@@ -462,6 +462,7 @@
     "statusHandedOver": "Artikel ausgehändigt",
     "cost": "Kosten",
     "paid": "Bezahlt",
+    "paidConfirmed": "Hat bezahlt",
     "budget": "Budget",
     "open": "Noch offen",
     "history": "Verlauf",