[29.x] Sync backport #10990 with latest Expense VAT setup and Shopify VAT-posting test updates

[Copilot]

This updates backport PR #10994 to match the current scope of PR #10990 on main, bringing the releases/29.x branch in sync for Expense Agent VAT/GST setup behavior and dependent Shopify test setup changes.
The backport now includes all 9 intended files and keeps the release-branch intent intact.

• Expense Agent category/subcategory alignment

  • Added hotel-specific subcategory codes (HOTEL-PARK, HOTELOTHER) and corresponding accessors.
  • Updated VAT-rate mapping to use hotel-specific parking/other subcategories.
  • Normalized room service token to ROOM-SERVICE.

• Expense VAT/GST account and posting-setup behavior

  • Replaced virtual single EXPENSE VAT account usage with lookup/use of seeded per-rate Expense VAT/GST posting accounts.
  • Added GetExpenseVATAccountName(VATPercent) with VAT/GST naming by country context.
  • Updated VAT posting setup creation/update logic to carry forward sales VAT account where available and set purchase account by rate.

• Contoso demo-data flow for VAT countries

  • Added IsVATCountry() gate based on Contoso demo company type.
  • Added Expense VAT/GST account seeding in the 5650–5659 range per country VAT-rate set.
  • Updated module master-data flow to set default VAT business posting group (Domestic) and then run Create Expense VAT Rates only for VAT countries.

• Shopify test setup compatibility

  • Added CreateVATPostingSetup overload separating general posting groups from VAT posting groups.
  • Updated invoice/shipping tests to use the new overload and aligned setup calls accordingly.

if not CreateExpenseCountryData.IsVATCountry() then
    exit;

ExpenseAgentSetup.Get();
ExpenseAgentSetup.Validate("Default VAT Bus. Posting Group", CreateVATPostingGroups.Domestic());
ExpenseAgentSetup.Modify(true);
Commit();
Codeunit.Run(Codeunit::"Create Expense VAT Rates");

[Alexander Yakunin (Alexander-Ya)]

Incomplete PR created, should be removed