Add end-to-end tests for parent notifications and actions

- Implement tests for approving and denying rewards and chores, including token generation and validation.
- Create tests for error handling scenarios with expired, tampered, and fake tokens.
- Add tests for push subscription registration and user profile notification settings.
- Ensure that notifications reflect the correct state of rewards and chores in the UI.
- Validate that toggles for email digest and push notifications function correctly based on user permissions and server state.

frontend/vue-app/e2e/mode_parent/notifications/reward-notification-approve.spec.ts

@@ -0,0 +1,153 @@
+// spec: e2e/plans/parent-notifications.plan.md §4
+
+import { test, expect, type APIRequestContext, type Page } from '@playwright/test'
+
+const CHILD_NAME = 'RewardNotifApproveChild'
+const REWARD_NAME = 'RewardNotifApproveReward'
+const REWARD_COST = 10
+const INITIAL_POINTS = 30
+
+async function createChild(
+  request: APIRequestContext,
+  name: string,
+  points: number,
+): Promise<string> {
+  const pre = await request.get('/api/child/list')
+  for (const c of (await pre.json()).children ?? []) {
+    if (c.name === name) await request.delete(`/api/child/${c.id}`)
+  }
+  await request.put('/api/child/add', { data: { name, age: 8 } })
+  const list = await request.get('/api/child/list')
+  const id = (await list.json()).children?.find((c: any) => c.name === name)?.id ?? ''
+  if (points > 0) await request.put(`/api/child/${id}/edit`, { data: { points } })
+  return id
+}
+
+async function createReward(
+  request: APIRequestContext,
+  name: string,
+  cost: number,
+): Promise<string> {
+  const pre = await request.get('/api/reward/list')
+  for (const r of (await pre.json()).rewards ?? []) {
+    if (r.name === name) await request.delete(`/api/reward/${r.id}`)
+  }
+  await request.put('/api/reward/add', { data: { name, description: 'notif e2e test', cost } })
+  const list = await request.get('/api/reward/list')
+  return (await list.json()).rewards?.find((r: any) => r.name === name)?.id ?? ''
+}
+
+async function getPoints(page: Page): Promise<number> {
+  const text = await page.locator('.points .value').textContent()
+  return parseInt(text?.trim() ?? '0', 10)
+}
+
+function rewardSection(page: Page) {
+  return page.locator('.child-list-container').filter({
+    has: page.locator('h3', { hasText: 'Rewards' }),
+  })
+}
+
+test.describe('Reward Notification — Appearance and In-App Grant', () => {
+  test.describe.configure({ mode: 'serial' })
+
+  let childId = ''
+  let rewardId = ''
+
+  test.beforeAll(async ({ request }) => {
+    childId = await createChild(request, CHILD_NAME, INITIAL_POINTS)
+    rewardId = await createReward(request, REWARD_NAME, REWARD_COST)
+
+    await request.put(`/api/child/${childId}/set-rewards`, {
+      data: { reward_ids: [rewardId] },
+    })
+
+    await request.post(`/api/child/${childId}/request-reward`, {
+      data: { reward_id: rewardId },
+    })
+  })
+
+  test.afterAll(async ({ request }) => {
+    if (childId) await request.delete(`/api/child/${childId}`)
+    if (rewardId) await request.delete(`/api/reward/${rewardId}`)
+  })
+
+  // 4.1 Requested reward appears in the notification view
+  test('Requested reward appears in notification view', async ({ page }) => {
+    await page.goto('/parent/notifications')
+    const item = page.locator('.list-item').filter({ hasText: REWARD_NAME })
+    await expect(item).toBeVisible({ timeout: 5000 })
+    await expect(item).toContainText('requested')
+  })
+
+  // 4.2 Notification item displays the child's name
+  test('Notification item displays the child name', async ({ page }) => {
+    await page.goto('/parent/notifications')
+    const item = page.locator('.list-item').filter({ hasText: REWARD_NAME })
+    await expect(item).toBeVisible({ timeout: 5000 })
+    await expect(item).toContainText(CHILD_NAME)
+  })
+
+  // 4.3 Clicking reward notification navigates to ParentView with correct query params
+  test('Clicking reward notification navigates to ParentView with correct query params', async ({
+    page,
+  }) => {
+    await page.goto('/parent/notifications')
+    const item = page.locator('.list-item').filter({ hasText: REWARD_NAME })
+    await expect(item).toBeVisible({ timeout: 5000 })
+    await item.click()
+    await page.waitForURL(new RegExp(`/parent/${childId}\\?scrollTo=.*&entityType=reward`), {
+      timeout: 5000,
+    })
+    expect(page.url()).toContain(`scrollTo=${rewardId}`)
+    expect(page.url()).toContain('entityType=reward')
+  })
+
+  // 4.4 Pending reward card shows PENDING badge in ParentView
+  test('Pending reward card shows PENDING badge in ParentView', async ({ page }) => {
+    await page.goto(`/parent/${childId}`)
+    const card = rewardSection(page).locator('.item-card').filter({ hasText: REWARD_NAME })
+    await expect(card).toBeVisible({ timeout: 5000 })
+    await expect(card).toContainText('PENDING')
+  })
+
+  // 4.5 Clicking a pending reward card opens the grant confirmation dialog
+  test('Clicking a pending reward card opens grant confirmation dialog', async ({ page }) => {
+    await page.goto(`/parent/${childId}`)
+    const card = rewardSection(page).locator('.item-card').filter({ hasText: REWARD_NAME })
+    await expect(card).toBeVisible({ timeout: 5000 })
+    await card.click()
+    await expect(card).toHaveClass(/item-ready/, { timeout: 3000 })
+    await card.click()
+    // A confirm dialog should appear — look for a confirmation button
+    const confirmBtn = page.getByRole('button', { name: /yes|confirm|grant/i })
+    await expect(confirmBtn).toBeVisible({ timeout: 5000 })
+  })
+
+  // 4.6 Confirming the grant removes PENDING badge and updates child points
+  test('Confirming grant removes PENDING badge and updates child points', async ({ page }) => {
+    await page.goto(`/parent/${childId}`)
+    const before = await getPoints(page)
+
+    const card = rewardSection(page).locator('.item-card').filter({ hasText: REWARD_NAME })
+    await expect(card).toBeVisible({ timeout: 5000 })
+    await card.click()
+    await expect(card).toHaveClass(/item-ready/, { timeout: 3000 })
+    await card.click()
+    const confirmBtn = page.getByRole('button', { name: /yes|confirm|grant/i })
+    await expect(confirmBtn).toBeVisible({ timeout: 5000 })
+    await confirmBtn.click()
+    await expect(confirmBtn).not.toBeVisible({ timeout: 5000 })
+    await expect(card).not.toContainText('PENDING', { timeout: 5000 })
+    await expect(page.locator('.points .value')).toHaveText(String(before - REWARD_COST), {
+      timeout: 5000,
+    })
+  })
+
+  // 4.7 Granting a reward clears it from the notification view
+  test('Granting a reward clears it from notification view', async ({ page }) => {
+    await page.goto('/parent/notifications')
+    const item = page.locator('.list-item').filter({ hasText: REWARD_NAME })
+    await expect(item).not.toBeVisible({ timeout: 5000 })
+  })
+})