Improve orders page with details and deferred payment.

Users who leave the payment step can return later and still see what
they ordered. Unpaid orders get a clear path back to Swish checkout.

- Add letterText to frontend Order type
- Show beställnings-ID, message, and formatted date on each order card
- Add "Betala nu" link to payment route for pending_payment orders
- Extend OrdersPage unit tests and order-history e2e for pay-later flow

frontend/e2e/order-history.spec.ts

@@ -54,6 +54,26 @@ test.describe('Order history', () => {
     await expect(page.getByText('Levererat').first()).toBeVisible()
   })
 
+  test('shows pay button for unpaid order and opens payment page', async ({
+    page,
+  }) => {
+    await page.goto('/logga-in')
+    await page.getByLabel('E-postadress').fill('test@bilhalsning.se')
+    await page.getByLabel('Lösenord').fill('test1234')
+    await page.getByRole('button', { name: 'Logga in' }).click()
+    await page.waitForURL('/')
+
+    await page.goto('/orders')
+
+    const unpaidCard = page.locator('.orders__card', { hasText: 'DEF456' })
+    await expect(unpaidCard.getByRole('link', { name: 'Betala nu' })).toBeVisible()
+    await unpaidCard.getByRole('link', { name: 'Betala nu' }).click()
+
+    await expect(page).toHaveURL(/\/betalning\/c2eebc99/)
+    await expect(page.getByRole('heading', { name: 'Betalning' })).toBeVisible()
+    await expect(page.getByText('DEF456')).toBeVisible()
+  })
+
   test('shows tracking links for orders with tracking ID', async ({ page }) => {
     await page.goto('/logga-in')
     await page.getByLabel('E-postadress').fill('test@bilhalsning.se')

frontend/src/__tests__/OrdersPage.spec.ts

@@ -17,6 +17,11 @@ function createTestRouter() {
     history: createMemoryHistory(),
     routes: [
       { path: '/orders', name: 'orders', component: OrdersPage },
+      {
+        path: '/betalning/:orderId',
+        name: 'payment',
+        component: { template: '<div>Payment</div>' },
+      },
       { path: '/', name: 'home', component: { template: '<div>Home</div>' } },
     ],
   })
@@ -38,6 +43,7 @@ const mockOrders = [
   {
     id: 'c1eebc99-9c0b-4ef8-bb6d-6bb9bd380a11',
     plate: 'ABC123',
+    letterText: 'Hej fin bil!',
     status: 'sent',
     trackingId: 'PN123456789',
     createdAt: '2026-05-11T12:00:00Z',
@@ -45,6 +51,7 @@ const mockOrders = [
   {
     id: 'c2eebc99-9c0b-4ef8-bb6d-6bb9bd380a12',
     plate: 'DEF456',
+    letterText: 'Vill köpa din bil.',
     status: 'pending_payment',
     trackingId: null,
     createdAt: '2026-05-14T13:00:00Z',
@@ -112,6 +119,7 @@ describe('OrdersPage', () => {
       {
         id: 'c2eebc99-9c0b-4ef8-bb6d-6bb9bd380a12',
         plate: 'DEF456',
+        letterText: 'Test',
         status: 'pending_payment',
         trackingId: null,
         createdAt: '2026-05-14T13:00:00Z',
@@ -126,6 +134,16 @@ describe('OrdersPage', () => {
     expect(link.exists()).toBe(false)
   })
 
+  it('renders order id and message', async () => {
+    const { wrapper } = mountPage()
+    await new Promise((r) => setTimeout(r, 50))
+    expect(wrapper.text()).toContain('Beställnings-ID')
+    expect(wrapper.text()).toContain('c1eebc99-9c0b-4ef8-bb6d-6bb9bd380a11')
+    expect(wrapper.text()).toContain('Meddelande')
+    expect(wrapper.text()).toContain('Hej fin bil!')
+    expect(wrapper.text()).toContain('Vill köpa din bil.')
+  })
+
   it('renders formatted date', async () => {
     const { wrapper } = mountPage()
     await new Promise((r) => setTimeout(r, 50))
@@ -156,11 +174,35 @@ describe('OrdersPage', () => {
     expect(badges[1].classes()).toContain('badge--muted')
   })
 
+  it('shows pay button only for pending payment orders', async () => {
+    const { wrapper } = mountPage()
+    await new Promise((r) => setTimeout(r, 50))
+
+    const payLinks = wrapper.findAll('.orders__pay-btn')
+    expect(payLinks).toHaveLength(1)
+    expect(payLinks[0].text()).toBe('Betala nu')
+
+    const href = payLinks[0].attributes('href')
+    expect(href).toContain('c2eebc99-9c0b-4ef8-bb6d-6bb9bd380a12')
+    expect(href).toContain('plate=DEF456')
+  })
+
+  it('does not show pay button for paid or sent orders', async () => {
+    const { wrapper } = mountPage()
+    await new Promise((r) => setTimeout(r, 50))
+
+    const sentCard = wrapper
+      .findAll('.orders__card')
+      .find((card) => card.text().includes('ABC123'))
+    expect(sentCard?.find('.orders__pay-btn').exists()).toBe(false)
+  })
+
   it('renders processing status correctly', async () => {
     const ordersWithProcessing = [
       {
         id: 'c4eebc99-9c0b-4ef8-bb6d-6bb9bd380a14',
         plate: 'XYZ123',
+        letterText: 'Processing message',
         status: 'processing',
         trackingId: null,
         createdAt: '2026-05-15T10:00:00Z',

frontend/src/api/orders.ts

@@ -3,6 +3,7 @@ import { request } from './client'
 export interface Order {
   id: string
   plate: string
+  letterText: string
   status: string
   trackingId: string | null
   amountPaid: number | null

frontend/src/pages/OrdersPage.vue

@@ -86,6 +86,14 @@ onMounted(async () => {
         </div>
 
         <div class="orders__card-meta">
+          <span class="orders__meta-label">Beställnings-ID</span>
+          <span class="orders__meta-value orders__order-id">{{ order.id }}</span>
+
+          <span class="orders__meta-label">Meddelande</span>
+          <span class="orders__meta-value orders__message">{{
+            order.letterText
+          }}</span>
+
           <span class="orders__meta-label">Datum</span>
           <span class="orders__meta-value">{{
             formatDate(order.createdAt)
@@ -103,6 +111,22 @@ onMounted(async () => {
             </a>
           </template>
         </div>
+
+        <div
+          v-if="order.status === 'pending_payment'"
+          class="orders__card-actions"
+        >
+          <RouterLink
+            :to="{
+              name: 'payment',
+              params: { orderId: order.id },
+              query: { plate: order.plate },
+            }"
+            class="btn btn--primary orders__pay-btn"
+          >
+            Betala nu
+          </RouterLink>
+        </div>
       </div>
     </div>
   </div>
@@ -177,6 +201,17 @@ onMounted(async () => {
   color: var(--color-ink);
 }
 
+.orders__order-id {
+  font-family: ui-monospace, monospace;
+  font-size: 0.8125rem;
+  word-break: break-all;
+}
+
+.orders__message {
+  white-space: pre-wrap;
+  line-height: 1.5;
+}
+
 .orders__tracking {
   font-size: 0.875rem;
   color: var(--color-primary);
@@ -188,6 +223,17 @@ onMounted(async () => {
   text-decoration: underline;
 }
 
+.orders__card-actions {
+  padding: var(--space-md) var(--space-lg);
+  border-top: 1px solid var(--color-border);
+  background: var(--color-border-light);
+}
+
+.orders__pay-btn {
+  width: 100%;
+  justify-content: center;
+}
+
 .orders__empty {
   padding: var(--space-2xl) 0;
   text-align: center;