feat: implement routines feature for child and parent modes

- Added backend models for routines, routine items, and schedules.
- Created API endpoints for managing routines and their items.
- Implemented frontend components for routine creation, detail view, and assignment.
- Integrated routines into child view with a scrolling list and approval workflow.
- Added push notifications for routine confirmations and pending approvals.
- Refactored existing components to accommodate new routines functionality.
- Updated tests to cover new routines feature and ensure proper functionality.

frontend/e2e/mode_parent/create-child/validation.spec.ts

@@ -2,12 +2,18 @@
 
 import { test, expect } from '@playwright/test'
 
+/** Navigate to the parent children list and wait for the Add Child button to be ready. */
+async function gotoParentList(page: import('@playwright/test').Page): Promise<void> {
+  await page.goto('/')
+  await expect(page.getByRole('button', { name: 'Add Child' })).toBeVisible({ timeout: 10000 })
+}
+
 test.describe('Create Child', () => {
   test.beforeEach(async ({ page }, testInfo) => {
     test.skip(testInfo.project.name === 'chromium-no-pin', 'Requires parent-authenticated mode')
 
-    // Navigate to app root - router redirects to /parent (children list) when parent-authenticated
-    await page.goto('/')
+    // Navigate to parent list and wait for it to fully load before clicking Add Child
+    await gotoParentList(page)
     await page.getByRole('button', { name: 'Add Child' }).click()
     await expect(page.getByRole('heading', { name: 'Create Child' })).toBeVisible()
   })