fix: stop ladder replacement immediately

[jackhai9]

Summary

• abort ladder replacement as soon as the active stop control is clicked
• stop before another old-order cancellation or new-order submission
• preserve and restore temporary account-order tab and symbol-filter state across aborts

Validation

• npm test (360/360)
• npm run build:binance-orderbook-trade
• npm run check:binance-orderbook-trade
• git diff --check