Add modal review/confirmation dialogs before submitting invoices, supplier
invoices, and journal entries. Since journal entries are legally immutable
once posted, users now see a full summary with an amber warning before
confirming. Add AccountNumber component with rich tooltips showing account
name, class, type, and plain-language Swedish explanation for ~45 key BAS
accounts across all report views.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>