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/tasks/penalty-convert-default.spec.ts

@@ -17,8 +17,11 @@ test('Convert a default penalty to a user item by editing', async ({ page }) =>
   await page.locator('#points').fill('15')
   await expect(page.getByRole('button', { name: 'Save' })).toBeEnabled()
   await page.getByRole('button', { name: 'Save' }).click()
-  // now should have delete option
+  // now should have delete option (match the updated name exactly)
   await expect(
-    page.locator('text=Fighting >> .. >> button[aria-label="Delete item"]'),
+    page
+      .getByText('Fighting (custom)', { exact: true })
+      .locator('..')
+      .locator('button[aria-label="Delete item"]'),
   ).toBeVisible()
 })