Merged PR 1991: ✨ feat(navigation): implement title management and enhance tab system

✨ feat(navigation): implement title management and enhance tab system

This commit introduces a comprehensive title management system and extends
the tab functionality with subtitle support, improving navigation clarity
and user experience across the application.

Key changes:

Title Management System:
- Add @isa/common/title-management library with dual approach:
  - IsaTitleStrategy for route-based static titles
  - usePageTitle() for component-based dynamic titles
- Implement TitleRegistryService for nested component hierarchies
- Automatic ISA prefix addition and TabService integration
- Comprehensive test coverage (1,158 lines of tests)

Tab System Enhancement:
- Add subtitle field to tab schema for additional context
- Update TabService API (addTab, patchTab) to support subtitles
- Extend Zod schemas with subtitle validation
- Update documentation with usage examples

Routing Modernization:
- Consolidate route guards using ActivateProcessIdWithConfigKeyGuard
- Replace 4+ specific guards with generic config-key-based approach
- Add title attributes to 100+ routes across all modules
- Remove deprecated ProcessIdGuard in favor of ActivateProcessIdGuard

Code Cleanup:
- Remove deprecated preview component and related routes
- Clean up unused imports and exports
- Update TypeScript path aliases

Dependencies:
- Update package.json and package-lock.json
- Add @isa/common/title-management to tsconfig path mappings

Refs: #5351, #5418, #5419, #5420

libs/checkout/feature/reward-catalog/src/lib/routes.ts

@@ -6,6 +6,7 @@ export const routes: Routes = [
   {
     path: '',
     component: RewardCatalogComponent,
+    title: 'Prämienshop',
     resolve: { querySettings: querySettingsResolverFn },
     data: {
       scrollPositionRestoration: true,

libs/checkout/feature/reward-order-confirmation/src/lib/routes.ts

@@ -6,6 +6,7 @@ import { canDeactivateTabCleanup } from '@isa/core/tabs';
 export const routes: Routes = [
   {
     path: ':displayOrderIds',
+    title: 'Prämienshop - Bestellbestätigung',
     providers: [
       CoreCommandModule.forChild(OMS_ACTION_HANDLERS).providers ?? [],
     ],

libs/checkout/feature/reward-shopping-cart/src/lib/routes.ts

@@ -4,6 +4,7 @@ import { RewardShoppingCartComponent } from './reward-shopping-cart.component';
 export const routes: Routes = [
   {
     path: '',
+    title: 'Prämienshop - Warenkorb',
     component: RewardShoppingCartComponent,
   },
 ];