feat(web): copiar de / a entre documentos de ventas y compras

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

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

@@ -94,4 +94,24 @@
     <button sboActions class="btn" type="button" (click)="reload()">Recargar</button>
   }
   <a sboActions class="btn" routerLink="..">{{ readOnly() ? 'Cerrar' : 'Cancelar' }}</a>
+  @if (partner && copyFromItems().length) {
+    <sbo-menu-button sboActionsEnd label="Copiar de" [items]="copyFromItems()" (picked)="copyFrom($event)" />
+  }
+  @if (partner && copyToItems().length) {
+    <sbo-menu-button sboActionsEnd label="Copiar a" [items]="copyToItems()" (picked)="copyTo($event)" />
+  }
 </sbo-window>
+
+@if (copyListScreen(); as src) {
+  <sbo-value-help
+    [open]="true"
+    [title]="'Copiar de: ' + src.createLabel.replace('Nueva ', '').replace('Nuevo ', '')"
+    [resource]="src.resource"
+    [columns]="copyListColumns"
+    [baseFilter]="copyListFilter()"
+    orderby="DocEntry desc"
+    rowKey="DocEntry"
+    (selected)="copyPicked($event)"
+    (closed)="copyListFor.set(null)"
+  />
+}