feat: Show confirm/decline buttons for Chef/Disponent

- Management can now accept/decline on behalf of employees
- Buttons always visible for management roles
- Visual feedback for already confirmed/declined status

src/views/OrderDetailView.vue

@@ -105,14 +105,14 @@ async function updateStatus(status: string) {
   }
 }
 
-async function confirmAssignment(confirm: boolean) {
+async function confirmAssignment(userId: string, confirm: boolean) {
   try {
-    await api.put(`/orders/${route.params.id}/assignment`, {
+    await api.put(`/orders/${route.params.id}/assignment/${userId}`, {
       status: confirm ? 'confirmed' : 'declined'
     })
-    const myAssignment = assignments.value.find(a => a.user_id === authStore.user?.id)
-    if (myAssignment) {
-      myAssignment.status = confirm ? 'confirmed' : 'declined'
+    const assignment = assignments.value.find(a => a.user_id === userId)
+    if (assignment) {
+      assignment.status = confirm ? 'confirmed' : 'declined'
     }
   } catch (e) {
     alert(e instanceof Error ? e.message : t('messages.error'))
@@ -258,10 +258,20 @@ const spotsRemaining = computed(() => {
               {{ getStatusLabel(assignment.status) }}
             </span>
             
-            <!-- Confirm/Decline buttons for assigned user -->
-            <template v-if="assignment.user_id === authStore.user?.id && assignment.status === 'pending'">
-              <button class="btn btn-success text-sm" @click="confirmAssignment(true)">✓</button>
-              <button class="btn btn-danger text-sm" @click="confirmAssignment(false)">✗</button>
+            <!-- Confirm/Decline buttons - for assigned user OR management -->
+            <template v-if="assignment.status === 'pending' || authStore.canManageOrders">
+              <button 
+                class="btn btn-success text-sm" 
+                :class="{ 'opacity-50': assignment.status === 'confirmed' }"
+                @click="confirmAssignment(assignment.user_id, true)"
+                :title="assignment.status === 'confirmed' ? 'Bereits bestätigt' : 'Bestätigen'"
+              >✓</button>
+              <button 
+                class="btn btn-danger text-sm" 
+                :class="{ 'opacity-50': assignment.status === 'declined' }"
+                @click="confirmAssignment(assignment.user_id, false)"
+                :title="assignment.status === 'declined' ? 'Bereits abgelehnt' : 'Ablehnen'"
+              >✗</button>
             </template>
             
             <!-- Remove button for management -->