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/sse.spec.ts

@@ -3,6 +3,12 @@
 import { test, expect } from '@playwright/test'
 import { STORAGE_STATE_CC } from '../../e2e-constants'
 
+/** 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.describe.configure({ mode: 'serial' })
 
@@ -17,7 +23,7 @@ test.describe('Create Child', () => {
     }
 
     // 1. Open two browser tabs both on /parent (children list)
-    await page.goto('/')
+    await gotoParentList(page)
     await expect(page).toHaveURL('/parent')
 
     const tab2 = await context.newPage()
@@ -64,7 +70,7 @@ test.describe('Create Child', () => {
     }
 
     // 1. Tab 1: parent mode
-    await page.goto('/')
+    await gotoParentList(page)
     await expect(page).toHaveURL('/parent')
 
     // 2. Tab 2: isolated browser context so removing parentAuth doesn't affect Tab 1