Bug/gh issues fiz (#1103)

* refactor: optimize page loading and data fetching

* fix: resolve recurring production runtime errors

* feat: add MCP company and customer updates

* fix: handle year-end tax adjustments

* feat: harden annual report compliance

* fix: expand invoice logo and font support

* fix: sanitize API route error responses

* fix: sanitize user-facing error messages

* feat: persist onboarding and tax assessment notices

* fix: reduce cloud backup audit churn

* feat: refine invoice editor layout

* fix: show saved tax adjustments in INK2

* fix: complete annual report API mappings

* docs: record operational safeguards and decisions

* fix: harden annual report review findings

* fix: adjust column span for description based on VAT registration

* New css class name

components/extensions/shared/MockDataImportDialog.tsx

@@ -16,6 +16,7 @@ import {
   Upload, FileJson, FileSpreadsheet, Download, AlertCircle, Check,
 } from 'lucide-react'
 import { cn } from '@/lib/utils'
+import { getErrorMessage as getUserErrorMessage } from '@/lib/errors/get-error-message'
 
 // ── Types ─────────────────────────────────────────────────────
 
@@ -192,7 +193,7 @@ export default function MockDataImportDialog<T>({
       await onImport(report, { source: 'csv', fileName, rowCount: mappedRows.length })
       handleOpenChange(false)
     } catch (e) {
-      setError(e instanceof Error ? e.message : 'Import misslyckades')
+      setError(e instanceof Error ? getUserErrorMessage(e) : 'Import misslyckades')
       setStep('map-csv')
     }
   }, [csvRows, csvHeaders, mappings, parseCsvRows, onImport, fileName, handleOpenChange])
@@ -206,7 +207,7 @@ export default function MockDataImportDialog<T>({
       await onImport(jsonReport, { source: 'json', fileName, rowCount: 0 })
       handleOpenChange(false)
     } catch (e) {
-      setError(e instanceof Error ? e.message : 'Import misslyckades')
+      setError(e instanceof Error ? getUserErrorMessage(e) : 'Import misslyckades')
       setStep('preview-json')
     }
   }, [jsonReport, onImport, fileName, handleOpenChange])