Add expand/collapse for long letter previews on orders page.

- Truncate previews over 120 characters with a Visa mer toggle
- Allow per-order expand state on pending and completed cards
- Add styles for expanded preview and toggle button
- Cover long and short message behavior in OrdersPage tests

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/__tests__/OrdersPage.spec.ts

@@ -337,4 +337,42 @@ describe('OrdersPage', () => {
     const badge = wrapper.find('.badge')
     expect(badge.classes()).toContain('badge--primary')
   })
+
+  it('shows expand toggle for long messages and reveals full text', async () => {
+    const longText =
+      'Hej! Jag ville nämna en situation i trafiken där vi båda kanske blev lite frustrerade. Det är lätt att det blir så när man kör bil i rusningstid och tempot blir högt.'
+    const ordersWithLongMessage = [
+      {
+        id: 'c1eebc99-9c0b-4ef8-bb6d-6bb9bd380a11',
+        plate: 'ABC123',
+        letterText: longText,
+        status: 'processing',
+        trackingId: null,
+        createdAt: '2026-05-11T12:00:00Z',
+      },
+    ]
+    mockOrdersFetch(ordersWithLongMessage)
+    const { wrapper } = mountPage()
+    await new Promise((r) => setTimeout(r, 50))
+
+    const card = wrapper.find('.orders__card')
+    const preview = card.find('.orders__preview')
+    const toggle = card.find('.orders__preview-toggle')
+
+    expect(toggle.exists()).toBe(true)
+    expect(toggle.text()).toBe('Visa mer')
+    expect(preview.classes()).not.toContain('orders__preview--expanded')
+
+    await toggle.trigger('click')
+
+    expect(preview.classes()).toContain('orders__preview--expanded')
+    expect(toggle.text()).toBe('Visa mindre')
+    expect(card.text()).toContain(longText)
+  })
+
+  it('does not show expand toggle for short messages', async () => {
+    const { wrapper } = mountPage()
+    await new Promise((r) => setTimeout(r, 50))
+    expect(wrapper.find('.orders__preview-toggle').exists()).toBe(false)
+  })
 })

frontend/src/pages/OrdersPage.vue

@@ -12,6 +12,27 @@ const loading = ref(true)
 const error = ref('')
 const actionError = ref('')
 const cancellingId = ref<string | null>(null)
+const expandedPreviewIds = ref<Set<string>>(new Set())
+
+const PREVIEW_CHAR_LIMIT = 120
+
+function isLongMessage(text: string): boolean {
+  return text.length > PREVIEW_CHAR_LIMIT
+}
+
+function isPreviewExpanded(orderId: string): boolean {
+  return expandedPreviewIds.value.has(orderId)
+}
+
+function togglePreview(orderId: string) {
+  const next = new Set(expandedPreviewIds.value)
+  if (next.has(orderId)) {
+    next.delete(orderId)
+  } else {
+    next.add(orderId)
+  }
+  expandedPreviewIds.value = next
+}
 
 const pendingOrders = computed(() =>
   orders.value.filter((order) => order.status === 'pending_payment'),
@@ -150,7 +171,22 @@ onMounted(loadOrders)
               </div>
 
               <div class="orders__preview-box">
-                <p class="orders__preview">{{ order.letterText }}</p>
+                <p
+                  class="orders__preview"
+                  :class="{
+                    'orders__preview--expanded': isPreviewExpanded(order.id),
+                  }"
+                >
+                  {{ order.letterText }}
+                </p>
+                <button
+                  v-if="isLongMessage(order.letterText)"
+                  type="button"
+                  class="orders__preview-toggle"
+                  @click="togglePreview(order.id)"
+                >
+                  {{ isPreviewExpanded(order.id) ? 'Visa mindre' : 'Visa mer' }}
+                </button>
               </div>
 
               <p class="orders__order-date">
@@ -233,7 +269,22 @@ onMounted(loadOrders)
               </div>
 
               <div class="orders__preview-box">
-                <p class="orders__preview">{{ order.letterText }}</p>
+                <p
+                  class="orders__preview"
+                  :class="{
+                    'orders__preview--expanded': isPreviewExpanded(order.id),
+                  }"
+                >
+                  {{ order.letterText }}
+                </p>
+                <button
+                  v-if="isLongMessage(order.letterText)"
+                  type="button"
+                  class="orders__preview-toggle"
+                  @click="togglePreview(order.id)"
+                >
+                  {{ isPreviewExpanded(order.id) ? 'Visa mindre' : 'Visa mer' }}
+                </button>
               </div>
 
               <p class="orders__order-date">
@@ -374,6 +425,29 @@ onMounted(loadOrders)
   overflow: hidden;
 }
 
+.orders__preview--expanded {
+  display: block;
+  -webkit-line-clamp: unset;
+  line-clamp: unset;
+  overflow: visible;
+}
+
+.orders__preview-toggle {
+  margin-top: var(--space-sm);
+  font-size: 0.8125rem;
+  font-weight: 500;
+  color: var(--color-primary);
+  background: none;
+  border: none;
+  padding: 0;
+  cursor: pointer;
+}
+
+.orders__preview-toggle:hover {
+  text-decoration: underline;
+  text-underline-offset: 2px;
+}
+
 .orders__order-date {
   margin: 0 0 var(--space-sm) 0;
   font-size: 0.8125rem;