feat: build admin dashboard with orders table and status dropdown

- api/admin.ts: AdminOrder interface (id, email, plate, letterText,
  status, trackingId, amountPaid, createdAt), fetchAllOrders() calls
  GET /api/admin/orders, updateOrderStatus(orderId, status) calls
  PATCH /api/admin/orders/{id}/status
- AdminPage.vue replaces placeholder with full dashboard:
  - Table columns: Datum, E-post, Regnr, Status, expand chevron
  - Click any row to toggle expanded letter preview below the row
  - Only one row expanded at a time; second click collapses
  - Status column has a <select> dropdown showing Swedish labels
  - Changing dropdown fires PATCH API immediately (no save button)
  - On API failure the dropdown reverts to previous value and a
    red inline error "Kunde inte uppdatera status" appears
  - Loading, empty, and API error states with Swedish messages
  - Responsive table wrapper for horizontal scroll on small screens
  - Expanded rows use a separate <tr> with colspan(5) for clean
    table semantics

frontend/src/api/admin.ts

@@ -0,0 +1,26 @@
+import { request } from './client'
+
+export interface AdminOrder {
+  id: string
+  email: string
+  plate: string
+  letterText: string
+  status: string
+  trackingId: string | null
+  amountPaid: number | null
+  createdAt: string
+}
+
+export function fetchAllOrders(): Promise<AdminOrder[]> {
+  return request<AdminOrder[]>('/admin/orders')
+}
+
+export function updateOrderStatus(
+  orderId: string,
+  status: string,
+): Promise<AdminOrder> {
+  return request<AdminOrder>(`/admin/orders/${orderId}/status`, {
+    method: 'PATCH',
+    body: JSON.stringify({ status }),
+  })
+}

frontend/src/pages/AdminPage.vue

@@ -1,28 +1,324 @@
-<script setup lang="ts"></script>
+<script setup lang="ts">
+import { ref, onMounted } from 'vue'
+import { fetchAllOrders, updateOrderStatus, type AdminOrder } from '@/api/admin'
+
+const orders = ref<AdminOrder[]>([])
+const expandedOrderId = ref<string | null>(null)
+const loading = ref(true)
+const error = ref('')
+const statusError = ref('')
+
+const statusLabels: Record<string, string> = {
+  pending_payment: 'Väntar på betalning',
+  paid: 'Betalad',
+  lookup_started: 'Hanteras',
+  sent: 'Skickat',
+  delivered: 'Levererat',
+  failed: 'Misslyckad',
+}
+
+const statusClasses: Record<string, string> = {
+  pending_payment: 'badge--gray',
+  paid: 'badge--blue',
+  lookup_started: 'badge--blue',
+  sent: 'badge--green',
+  delivered: 'badge--green',
+  failed: 'badge--red',
+}
+
+const allStatuses = [
+  'pending_payment',
+  'paid',
+  'lookup_started',
+  'sent',
+  'delivered',
+  'failed',
+]
+
+function formatDate(iso: string): string {
+  return new Date(iso).toLocaleDateString('sv-SE', {
+    year: 'numeric',
+    month: 'short',
+    day: 'numeric',
+  })
+}
+
+function toggleExpand(orderId: string) {
+  expandedOrderId.value = expandedOrderId.value === orderId ? null : orderId
+}
+
+async function handleStatusChange(orderId: string, newStatus: string) {
+  const order = orders.value.find((o) => o.id === orderId)
+  if (!order) return
+
+  const previousStatus = order.status
+  order.status = newStatus
+  statusError.value = ''
+
+  try {
+    await updateOrderStatus(orderId, newStatus)
+  } catch {
+    order.status = previousStatus
+    statusError.value = 'Kunde inte uppdatera status. Försök igen.'
+  }
+}
+
+onMounted(async () => {
+  try {
+    orders.value = await fetchAllOrders()
+  } catch {
+    error.value = 'Kunde inte hämta beställningar. Försök igen senare.'
+  } finally {
+    loading.value = false
+  }
+})
+</script>
 
 <template>
-  <div class="admin">
+  <div class="admin-dashboard">
-    <h1 class="admin__title">Administration</h1>
+    <h1 class="admin-dashboard__title">Administration</h1>
-    <p class="admin__subtitle">Hantera beställningar, mallar och användare.</p>
+    <p class="admin-dashboard__subtitle">
+      Hantera beställningar, mallar och användare.
+    </p>
+
+    <p v-if="loading" class="admin-dashboard__loading">
+      Laddar beställningar...
+    </p>
+
+    <p v-else-if="error" class="admin-dashboard__error">{{ error }}</p>
+
+    <p v-else-if="orders.length === 0" class="admin-dashboard__empty">
+      Inga beställningar ännu.
+    </p>
+
+    <div v-else class="admin-dashboard__table-wrapper">
+      <p v-if="statusError" class="admin-dashboard__status-error">
+        {{ statusError }}
+      </p>
+
+      <table class="admin-dashboard__table">
+        <thead>
+          <tr>
+            <th>Datum</th>
+            <th>E-post</th>
+            <th>Regnr</th>
+            <th>Status</th>
+            <th></th>
+          </tr>
+        </thead>
+        <tbody>
+          <template v-for="order in orders" :key="order.id">
+            <tr
+              class="admin-dashboard__row"
+              :class="{
+                'admin-dashboard__row--expanded': expandedOrderId === order.id,
+              }"
+              @click="toggleExpand(order.id)"
+            >
+              <td>{{ formatDate(order.createdAt) }}</td>
+              <td>{{ order.email }}</td>
+              <td class="admin-dashboard__plate">{{ order.plate }}</td>
+              <td>
+                <select
+                  class="admin-dashboard__status-select"
+                  :class="statusClasses[order.status] || 'badge--gray'"
+                  :value="order.status"
+                  @change="
+                    handleStatusChange(
+                      order.id,
+                      ($event.target as HTMLSelectElement).value,
+                    )
+                  "
+                  @click.stop
+                >
+                  <option v-for="s in allStatuses" :key="s" :value="s">
+                    {{ statusLabels[s] }}
+                  </option>
+                </select>
+              </td>
+              <td class="admin-dashboard__expand">
+                <span class="admin-dashboard__chevron">
+                  {{ expandedOrderId === order.id ? '▼' : '▶' }}
+                </span>
+              </td>
+            </tr>
+            <tr
+              v-if="expandedOrderId === order.id"
+              class="admin-dashboard__expanded-row"
+            >
+              <td :colspan="5">
+                <div class="admin-dashboard__letter">
+                  <div class="admin-dashboard__letter-label">Brevtext</div>
+                  <div class="admin-dashboard__letter-text">
+                    {{ order.letterText }}
+                  </div>
+                </div>
+              </td>
+            </tr>
+          </template>
+        </tbody>
+      </table>
+    </div>
   </div>
 </template>
 
 <style scoped>
-.admin {
+.admin-dashboard {
-  max-width: 48rem;
+  max-width: 64rem;
   margin: 3rem auto 0;
   padding: 0 1rem;
 }
 
-.admin__title {
+.admin-dashboard__title {
   margin: 0 0 0.25rem 0;
   font-size: 1.5rem;
   color: #1a202c;
 }
 
-.admin__subtitle {
+.admin-dashboard__subtitle {
-  margin: 0;
+  margin: 0 0 1.5rem 0;
   color: #718096;
   font-size: 0.875rem;
 }
+
+.admin-dashboard__loading,
+.admin-dashboard__error,
+.admin-dashboard__empty {
+  margin: 2rem 0;
+  padding: 1rem;
+  border-radius: 0.5rem;
+  font-size: 0.875rem;
+  text-align: center;
+}
+
+.admin-dashboard__loading {
+  color: #718096;
+}
+
+.admin-dashboard__error {
+  background: #fff5f5;
+  border: 1px solid #fed7d7;
+  color: #c53030;
+}
+
+.admin-dashboard__empty {
+  background: #f7fafc;
+  border: 1px solid #e2e8f0;
+  color: #718096;
+}
+
+.admin-dashboard__status-error {
+  margin: 0 0 0.75rem 0;
+  padding: 0.5rem 0.75rem;
+  background: #fff5f5;
+  border: 1px solid #fed7d7;
+  border-radius: 0.375rem;
+  color: #c53030;
+  font-size: 0.8125rem;
+}
+
+.admin-dashboard__table-wrapper {
+  overflow-x: auto;
+}
+
+.admin-dashboard__table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: 0.875rem;
+}
+
+.admin-dashboard__table thead {
+  background: #f7fafc;
+}
+
+.admin-dashboard__table th {
+  padding: 0.75rem 1rem;
+  text-align: left;
+  font-size: 0.75rem;
+  font-weight: 600;
+  color: #718096;
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+  border-bottom: 2px solid #e2e8f0;
+}
+
+.admin-dashboard__row {
+  cursor: pointer;
+  border-bottom: 1px solid #e2e8f0;
+  transition: background 0.1s;
+}
+
+.admin-dashboard__row:hover {
+  background: #f7fafc;
+}
+
+.admin-dashboard__row--expanded {
+  background: #ebf8ff;
+}
+
+.admin-dashboard__row td {
+  padding: 0.75rem 1rem;
+  color: #4a5568;
+  white-space: nowrap;
+}
+
+.admin-dashboard__plate {
+  font-weight: 600;
+  letter-spacing: 0.05em;
+  color: #1a202c !important;
+}
+
+.admin-dashboard__status-select {
+  display: inline-block;
+  padding: 0.25rem 0.5rem;
+  border-radius: 0.375rem;
+  border: 1px solid #e2e8f0;
+  font-size: 0.75rem;
+  font-weight: 600;
+  color: #4a5568;
+  outline: none;
+  cursor: pointer;
+  background: #fff;
+}
+
+.admin-dashboard__status-select:focus {
+  border-color: #4299e1;
+  box-shadow: 0 0 0 2px rgba(66, 153, 225, 0.2);
+}
+
+.admin-dashboard__expand {
+  text-align: center;
+  width: 2rem;
+}
+
+.admin-dashboard__chevron {
+  font-size: 0.625rem;
+  color: #a0aec0;
+}
+
+.admin-dashboard__expanded-row td {
+  padding: 0;
+  background: #f7fafc;
+}
+
+.admin-dashboard__letter {
+  padding: 1rem 1.25rem;
+  border-top: 1px solid #e2e8f0;
+}
+
+.admin-dashboard__letter-label {
+  font-size: 0.75rem;
+  font-weight: 600;
+  color: #a0aec0;
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+  margin-bottom: 0.5rem;
+}
+
+.admin-dashboard__letter-text {
+  font-size: 0.875rem;
+  color: #4a5568;
+  line-height: 1.6;
+  white-space: pre-wrap;
+}
 </style>