feat(pos): add shop and statistics modules with components, services, and routing

- Implemented shop module with root component, loading state, and invoice handling.
- Created statistics module with invoice type card component, API routes, and data models.
- Added season picker component for selecting year and season.
- Integrated services for fetching statistics data and managing state.
- Established routing for statistics and shop views.

src/app/domains/pos/modules/configs/views/root.component.ts

@@ -1,4 +1,5 @@
 import { AppCardComponent } from '@/shared/components';
+import { UikitFlatpickrJalaliComponent } from '@/uikit';
 import { Component, inject } from '@angular/core';
 import { Router } from '@angular/router';
 import { Message } from 'primeng/message';
@@ -7,7 +8,7 @@ import { PosConfigPrintFormComponent } from '../components/print/form.component'
 @Component({
   selector: 'pos-config-page',
   templateUrl: './root.component.html',
-  imports: [PosConfigPrintFormComponent, AppCardComponent, Message],
+  imports: [PosConfigPrintFormComponent, AppCardComponent, Message, UikitFlatpickrJalaliComponent],
 })
 export class PosConfigPageComponent {
   private readonly router = inject(Router);