fix some bug

src/utils/walletDisplay.ts

@@ -0,0 +1,25 @@
+import type { Wallet, WalletKind } from '@/model/wallet'
+
+export function walletKindTagStyle(kind?: WalletKind) {
+  switch (kind) {
+    case 'main':
+      return { textColor: '#1d4ed8', bgColor: '#dbeafe' }
+    case 'product':
+      return { textColor: '#15803d', bgColor: '#dcfce7' }
+    case 'fund':
+      return { textColor: '#7e22ce', bgColor: '#f3e8ff' }
+    default:
+      return { textColor: '#374151', bgColor: '#f3f4f6' }
+  }
+}
+
+export function walletSheetTitle(wallet: Wallet | null | undefined): string {
+  if (!wallet) return 'مشخصات کیف پول'
+  return wallet.wallet_subject || wallet.customer?.name || `کیف پول #${wallet.id ?? '-'}`
+}
+
+export function walletProductWeightLabel(wallet: Wallet | null | undefined): string {
+  if (!wallet?.product_amount && wallet?.product_amount !== 0) return '—'
+  const unit = wallet.product_unit ? ` ${wallet.product_unit}` : ''
+  return `${wallet.product_amount}${unit}`
+}