ibit-flutter/lib/core/utils/symbol_display.dart

/// 与 Web 端币对展示对齐：`btcusdt` / `BTCUSDT` / `BTC-USDT` → `BTC/USDT`
String formatUsdtPairDisplay(String raw) {
  final compact = raw.trim().toUpperCase().replaceAll(RegExp(r'[/\-\s]'), '');
  if (compact.endsWith('USDT') && compact.length > 4) {
    return '${compact.substring(0, compact.length - 4)}/USDT';
  }
  return raw.trim();
}