Implement Invoices fetching and uploading

backend/src/modules/invoices/invoice.service.ts

@@ -89,6 +89,17 @@ export class InvoicesService {
     });
   }
 
+  /**
+   * قائمة جميع الفواتير للمكتب
+   */
+  async findAllByTenant(tenantId: string): Promise<Invoice[]> {
+    return this.invoiceRepository.find({
+      where: { tenant_id: tenantId },
+      relations: ['company'],
+      order: { created_at: 'DESC' },
+    });
+  }
+
   /**
    * تفاصيل فاتورة
    */