feat: redondeo en el pie de los documentos de ventas y compras (visible según OADM.RoundMthd) y endpoint /api/company/settings

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

apps/web/src/app/features/documents/document-form.page.ts

@@ -7,8 +7,9 @@ import type { SlListResponse } from '@basic-erp/sap-types';
 import { map } from 'rxjs';
 import { API_URL, apiErrorMessage } from '../../core/api';
 import { formatNumber } from '../../core/format';
+import { CompanySettingsService } from '../../core/company/company-settings';
 import { SlDocumentApi } from '../../core/sl/sl-document';
-import { CheckboxField, DateField, LookupField, NumberField, SboField, SelectField, SelectInput, TextField, TextInput, TextareaField } from '../../shared/form';
+import { CheckboxField, CheckboxInput, DateField, LookupField, NumberField, NumberInput, SboField, SelectField, SelectInput, TextField, TextInput, TextareaField } from '../../shared/form';
 import type { GridLine, GridMultiAdd } from '../../shared/grid/grid.types';
 import { LinesGrid } from '../../shared/grid/lines-grid';
 import type { VhLookup } from '../../shared/value-help/value-help.types';
@@ -71,7 +72,7 @@ const folioAsNumber = (h: DocRecord): DocRecord => {
 @Component({
   selector: 'sbo-document-form-page',
   changeDetection: ChangeDetectionStrategy.OnPush,
-  imports: [CheckboxField, DateField, Icon, LinesGrid, LookupField, MenuButton, NgTemplateOutlet, NumberField, RouterLink, RowsTable, SboField, SelectField, SelectInput, SboWindow, TextField, TextInput, TextareaField, Toolbar, ValueHelp],
+  imports: [CheckboxField, CheckboxInput, DateField, Icon, LinesGrid, LookupField, MenuButton, NgTemplateOutlet, NumberField, NumberInput, RouterLink, RowsTable, SboField, SelectField, SelectInput, SboWindow, TextField, TextInput, TextareaField, Toolbar, ValueHelp],
   templateUrl: './document-form.page.html',
   styles: `
     h1 { margin: 0 0 6px; font-size: 18px; font-weight: 600; }
@@ -87,6 +88,8 @@ export class DocumentFormPage {
   private readonly route = inject(ActivatedRoute);
   private readonly router = inject(Router);
   private readonly api = inject(SlDocumentApi);
+  /** La empresa usa redondeo (`OADM.RoundMthd`): solo entonces se ofrece la fila «Redondeo». */
+  protected readonly roundingEnabled = inject(CompanySettingsService).roundingEnabled;
 
   protected readonly title = this.route.snapshot.data['title'] as string;
   protected readonly screen = this.route.snapshot.data['screen'] as DocumentScreen;
@@ -269,7 +272,7 @@ export class DocumentFormPage {
     taxRateMap(this.taxResource.hasValue() ? this.taxResource.value().value : []),
   );
   protected readonly totals = computed(() =>
-    computeTotals(this.lines(), this.rates(), Number(this.header()['DiscountPercent'] ?? 0), this.expenses()),
+    computeTotals(this.lines(), this.rates(), Number(this.header()['DiscountPercent'] ?? 0), this.expenses(), this.header()['Rounding'] === 'tYES' ? Number(this.header()['RoundingDiffAmount'] ?? 0) : 0),
   );
   protected readonly fmt = (n: number): string => formatNumber(n, 2);
 
@@ -512,6 +515,11 @@ export class DocumentFormPage {
       const d = this.doc();
       if (!d) {
         const header = folioAsNumber(this.layout.beforeCreate?.(this.header()) ?? this.header());
+        // sin redondeo marcado no se envía nada: SAP calcula el suyo
+        if (header['Rounding'] !== 'tYES') {
+          delete header['Rounding'];
+          delete header['RoundingDiffAmount'];
+        }
         const body = createPayload(header, this.lines(), this.spec());
         if (this.hasExpenses && expensesPayload(this.expenses()).length) body[EXPENSES_COLLECTION] = expensesPayload(this.expenses());
         const created = await this.api.create(this.screen.resource, body);