feat(cart): implement cart editing policy with granular permissions

src/app/features/store/pages/checkout-page/checkout-page.component.html

@@ -58,11 +58,13 @@
         [subtotal]="cartSubtotal()"
         [discount]="cartDiscount()"
         [total]="cartTotal()"
-        [readonly]="!cartEditingEnabled()"
-        [allowEditing]="
+        [readonly]="!canModifyCart()"
+        [allowModify]="canModifyCart()"
+        [allowUpdateQuantity]="canUpdateCartQuantity()"
+        [requireEditingMode]="
           createdPurchase()?.status === 'created' || createdPurchase()?.status === 'pending_payment'
         "
-        [allowRemove]="false"
+        [allowDelete]="false"
         [persistQuantityChanges]="false"
         [editing]="isEditingItems()"
         [editingDisabled]="isUpdatingItem() || isPreparingItemEdit()"

src/app/features/store/pages/checkout-page/checkout-page.component.spec.ts

@@ -10,6 +10,7 @@ import { CartService } from '../../../../core/services/cart/cart.service';
 import { CheckoutService } from '../../../../core/services/checkout.service';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
 import { TenantService } from '../../../../core/services/tenant.service';
+import { CartEditingPolicy } from '../../../../core/services/tenant.interface';
 import { CheckoutPageComponent } from './checkout-page.component';
 
 describe('CheckoutPageComponent payment validation', () => {
@@ -32,7 +33,12 @@ describe('CheckoutPageComponent payment validation', () => {
   let routerStub: { navigate: ReturnType<typeof vi.fn> };
   let routeQueryParamMap: ReturnType<typeof convertToParamMap>;
   let authUserState: ReturnType<typeof signal>;
-  let tenantState: ReturnType<typeof signal<{ codigo: string; cart_editing_enabled?: boolean }>>;
+  let tenantState: ReturnType<
+    typeof signal<{
+      codigo: string;
+      cart_editing_policy?: CartEditingPolicy;
+    }>
+  >;
 
   beforeAll(() => {
     try {
@@ -87,7 +93,16 @@ describe('CheckoutPageComponent payment validation', () => {
     routerStub = { navigate: vi.fn() };
     routeQueryParamMap = convertToParamMap({});
     authUserState = signal(null);
-    tenantState = signal({ codigo: 'tenant-test' });
+    tenantState = signal({
+      codigo: 'tenant-test',
+      cart_editing_policy: {
+        code: 'full',
+        allow_modify: true,
+        allow_delete: true,
+        allow_update_quantity: true,
+        allow_update_variant: true,
+      },
+    });
 
     await TestBed.configureTestingModule({
       imports: [CheckoutPageComponent],
@@ -467,12 +482,22 @@ describe('CheckoutPageComponent payment validation', () => {
   });
 
   it('does not allow item editing when the tenant disables cart editing', async () => {
-    tenantState.set({ codigo: 'tenant-test', cart_editing_enabled: false });
+    tenantState.set({
+      codigo: 'tenant-test',
+      cart_editing_policy: {
+        code: 'disabled',
+        allow_modify: false,
+        allow_delete: false,
+        allow_update_quantity: false,
+        allow_update_variant: false,
+      },
+    });
     const { component } = createComponent();
 
     await component.onEditingItemsChange(true);
 
-    expect(component.cartEditingEnabled()).toBe(false);
+    expect(component.canUpdateCartQuantity()).toBe(false);
+    expect(component.canModifyCart()).toBe(false);
     expect(component.isEditingItems()).toBe(false);
     expect(checkoutServiceStub.prepareItemEditing).not.toHaveBeenCalled();
   });

src/app/features/store/pages/checkout-page/checkout-page.component.ts

@@ -79,8 +79,11 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
   protected readonly createdPurchase = signal<PurchaseDetailResponse | null>(null);
   protected readonly isLoadingPurchase = signal(true);
   protected readonly checkoutStepIndex = signal(0);
-  protected readonly cartEditingEnabled = computed(
-    () => this.tenantService.tenant()?.cart_editing_enabled ?? true,
+  protected readonly canUpdateCartQuantity = computed(
+    () => this.tenantService.tenant()?.cart_editing_policy?.allow_update_quantity ?? false,
+  );
+  protected readonly canModifyCart = computed(
+    () => this.tenantService.tenant()?.cart_editing_policy?.allow_modify ?? false,
   );
 
   protected readonly cartSubtotal = computed(() => {
@@ -181,7 +184,7 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
       return;
     }
 
-    if (editing && !this.cartEditingEnabled()) {
+    if (editing && !this.canModifyCart()) {
       return;
     }
 
@@ -231,7 +234,7 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
     const itemId = event.item.cartItemId;
 
     if (
-      !this.cartEditingEnabled() ||
+      !this.canUpdateCartQuantity() ||
       !tenant ||
       !purchaseId ||
       !itemId ||