feat: unified document inbox, full BAS 2026, and document-transaction matching

- Expand BAS reference from ~180 to ~1,276 accounts (full BAS Kontoplan 2026)
  with K2 exclusion flags, per-class data files, and computed SRU codes
- Evolve invoice inbox into unified document inbox handling invoices, receipts,
  and government letters with AI-powered classification (Claude Haiku Vision)
- Add multi-pass document-to-transaction matching engine with greedy assignment
  for both supplier invoices (reference/amount/date/name) and receipts
  (weighted amount/merchant/date scoring)
- Add supplier invoice matching in transaction ingest pipeline
- Inject booking template suggestions into AI extraction prompts
- Surface matched documents in swipe categorization UI with one-tap booking
- Auto-activate missing BAS accounts during SIE import against full reference
- Add K2 filter toggle in Chart of Accounts manager
- Add receipt confirmation route with BFNAR representation fields
- Add database migrations for K2 support and document matching columns
- Remove obsolete extension migration scripts

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

lib/extensions/invoice-inbox-utils.ts

@@ -1,4 +1,4 @@
-import type { InboxItemStatus, InvoiceExtractionResult } from '@/types'
+import type { InboxItemStatus, InvoiceExtractionResult, DocumentClassificationType } from '@/types'
 
 const STATUS_LABELS: Record<InboxItemStatus, string> = {
   pending: 'Väntar',
@@ -51,3 +51,43 @@ export function formatExtractionSummary(
     lineCount: data.lineItems?.length ?? 0,
   }
 }
+
+// Document type labels (Swedish)
+const DOCUMENT_TYPE_LABELS: Record<DocumentClassificationType, string> = {
+  supplier_invoice: 'Faktura',
+  receipt: 'Kvitto',
+  government_letter: 'Myndighetspost',
+  unknown: 'Övrigt',
+}
+
+export function getDocumentTypeLabel(type: DocumentClassificationType): string {
+  return DOCUMENT_TYPE_LABELS[type] ?? type
+}
+
+const DOCUMENT_TYPE_VARIANTS: Record<DocumentClassificationType, string> = {
+  supplier_invoice: 'default',
+  receipt: 'secondary',
+  government_letter: 'outline',
+  unknown: 'outline',
+}
+
+export function getDocumentTypeVariant(type: DocumentClassificationType): string {
+  return DOCUMENT_TYPE_VARIANTS[type] ?? 'outline'
+}
+
+/**
+ * Format extraction summary for receipt documents
+ */
+export function formatReceiptSummary(
+  data: Record<string, unknown> | null | undefined
+): { merchantName: string; total: number } {
+  if (!data) {
+    return { merchantName: '', total: 0 }
+  }
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  const d = data as any
+  return {
+    merchantName: d.merchant?.name ?? '',
+    total: d.totals?.total ?? 0,
+  }
+}

lib/extensions/sectors.ts

@@ -72,15 +72,15 @@ export const SECTORS: Sector[] = [
       },
       {
         slug: 'invoice-inbox',
-        name: 'Leverantörsfaktura-inbox',
+        name: 'Dokumentinkorg',
         sector: 'general',
         category: 'import',
         icon: 'Inbox',
         dataPattern: 'manual',
         hasOwnData: true,
-        description: 'Ta emot leverantörsfakturor via e-post eller uppladdning',
+        description: 'Ta emot alla dokument via e-post — fakturor, kvitton och myndighetspost',
         longDescription:
-          'Skicka leverantörsfakturor till en dedikerad e-postadress eller ladda upp manuellt. AI extraherar automatiskt leverantörsdata, belopp och moms. Granska och bekräfta med ett klick för att skapa leverantörsfakturor.',
+          'Skicka alla affärsdokument till en dedikerad e-postadress. AI klassificerar automatiskt dokumenttyp (faktura, kvitto, myndighetspost), extraherar data och matchar mot transaktioner. En inkorg för alla dokument.',
       },
       {
         slug: 'calendar',

lib/extensions/workspace-registry.tsx

@@ -13,7 +13,7 @@ const WORKSPACES: Record<WorkspaceKey, ComponentType<WorkspaceComponentProps>> =
   'general/ai-categorization': dynamic(() => import('@/components/extensions/general/AiCategorizationWorkspace')),
   'general/ai-chat': dynamic(() => import('@/components/extensions/general/AiChatWorkspace')),
   'general/push-notifications': dynamic(() => import('@/components/extensions/general/PushNotificationsWorkspace')),
-  'general/invoice-inbox': dynamic(() => import('@/components/extensions/general/InvoiceInboxWorkspace')),
+  'general/invoice-inbox': dynamic(() => import('@/components/extensions/general/DocumentInboxWorkspace')),
   'general/calendar': dynamic(() => import('@/components/extensions/general/CalendarWorkspace')),
   'general/enable-banking': dynamic(() => import('@/components/extensions/general/EnableBankingWorkspace')),
   'general/user-description-match': dynamic(() => import('@/components/extensions/general/UserDescriptionMatchWorkspace')),