feat: UI slop cleanup, invoice icon/header polish + year-end in Rapporter, journal-list DataList refactor (#847)

UI cleanup: removed AI-slop (redundant suppliers subtitle, decorative Sparkles glyph), decluttered the article-detail header (single status badge + muted type · #number), standardized the invoice icon Receipt→ReceiptText (no $ in a SEK app), and matched ReportExportMenu trigger size to the primary CTA on list pages.

Bookkeeping: surfaced year-end closing in Rapporter (catalog descriptor) and dropped the redundant header button; refactored JournalEntryList to DataList primitives + chunked /api/documents/counts in 50-ID batches (large pages previously 400'd); added optional fraction-digit overrides to formatCurrency. The fiscal-year lock indicator is preserved as a labeled Låst/Stängt badge in FiscalYearSelector.

All PR-bot findings triaged as false positives (unused import, formatCurrency öre, lock indicator) or intentional design (year-end placement, empty-state messaging). CI green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

lib/utils.ts

@@ -15,12 +15,16 @@ export function cn(...inputs: ClassValue[]) {
  */
 const INVALID_DATE_PLACEHOLDER = '—'
 
-export function formatCurrency(amount: number, currency: string = 'SEK'): string {
+export function formatCurrency(
+  amount: number,
+  currency: string = 'SEK',
+  options?: { minimumFractionDigits?: number; maximumFractionDigits?: number },
+): string {
   return new Intl.NumberFormat('sv-SE', {
     style: 'currency',
     currency,
-    minimumFractionDigits: 0,
-    maximumFractionDigits: 2,
+    minimumFractionDigits: options?.minimumFractionDigits ?? 0,
+    maximumFractionDigits: options?.maximumFractionDigits ?? 2,
   }).format(amount)
 }