Merged PR 1961: feat(checkout-reward): implement reward catalog customer integration and purc...

feat(checkout-reward): implement reward catalog customer integration and purchase flow

- Add customer card resource and display in reward header with reset functionality
- Implement shopping cart creation and management for reward purchases
- Add purchase options modal integration with redemption points support
- Extract route helper for customer navigation with proper query params
- Update checkout metadata service constants with proper namespacing
- Add reward context initialization for tab metadata
- Improve component styling and layout for reward action buttons
- Fix customer facade method signature to require AbortSignal parameter

The reward catalog now supports full customer workflow from selection
through purchase options with proper state management and navigation.

Ref: #5263, #5358

libs/core/tabs/src/lib/helpers.ts

@@ -1,6 +1,5 @@
 import z from 'zod';
 import { Tab } from './schemas';
-import { computed } from '@angular/core';
 
 export function getTabHelper(
   tabId: number,