Refactor Playwright tests and update configurations

- Consolidated kindness and penalty tests into single files to ensure serial execution and prevent conflicts.
- Updated Playwright configuration to define separate test buckets for child options and create child tests, ensuring proper execution order.
- Added new tests for child kebab menu options including editing, deleting points, and confirming child deletion.
- Removed obsolete tests for kindness and penalty default management.
- Updated authentication tokens in user.json for improved security.
- Enhanced test reliability by implementing retry logic for UI interactions in the create-child happy path test.

frontend/vue-app/e2e/mode_parent/child-options/delete-child.spec.ts

@@ -0,0 +1,54 @@
+import { test, expect } from '@playwright/test'
+
+async function createTestChild(request: any, name: string, age = 8): Promise<string> {
+  await request.put('/api/child/add', { data: { name, age } })
+  const listRes = await request.get('/api/child/list')
+  const data = await listRes.json()
+  const child = (data.children ?? []).find((c: any) => c.name === name)
+  return child?.id ?? ''
+}
+
+test.describe('Child kebab menu – Delete Child', () => {
+  test.describe.configure({ mode: 'serial' })
+
+  const CHILD_NAME = 'KebabDelete'
+  let childId = ''
+
+  test.afterEach(async ({ request }) => {
+    // Best-effort cleanup in case the test did not delete the child
+    if (childId) await request.delete(`/api/child/${childId}`)
+    childId = ''
+  })
+
+  test('Confirm deletes the child from the list', async ({ page, request }) => {
+    childId = await createTestChild(request, CHILD_NAME)
+    await page.goto('/parent')
+    await expect(page.getByRole('heading', { name: CHILD_NAME })).toBeVisible()
+
+    const card = page.locator('.card').filter({ hasText: CHILD_NAME })
+    await card.getByRole('button', { name: 'Options' }).click()
+    await card.getByRole('button', { name: 'Delete Child' }).click()
+
+    await expect(page.getByText('Are you sure you want to delete this child?')).toBeVisible()
+    await page.getByRole('button', { name: 'Delete' }).click()
+
+    await expect(page.getByRole('heading', { name: CHILD_NAME })).not.toBeVisible()
+    childId = '' // already deleted, skip afterEach cleanup
+  })
+
+  test('Cancel does not delete the child', async ({ page, request }) => {
+    childId = await createTestChild(request, CHILD_NAME)
+    await page.goto('/parent')
+    await expect(page.getByRole('heading', { name: CHILD_NAME })).toBeVisible()
+
+    const card = page.locator('.card').filter({ hasText: CHILD_NAME })
+    await card.getByRole('button', { name: 'Options' }).click()
+    await card.getByRole('button', { name: 'Delete Child' }).click()
+
+    await expect(page.getByText('Are you sure you want to delete this child?')).toBeVisible()
+    await page.getByRole('button', { name: 'Cancel' }).click()
+
+    await expect(page.getByText('Are you sure you want to delete this child?')).not.toBeVisible()
+    await expect(page.getByRole('heading', { name: CHILD_NAME })).toBeVisible()
+  })
+})