Reduce capacity recovery cancellation batch

[jackhai9]

Summary

• reduce max-order capacity recovery from 100 to 50 farthest same-direction orders
• keep the existing symbol, direction, Basic-order, and distance-ranking constraints unchanged
• update regression coverage and the development manual

Validation

• npm run build:binance-orderbook-trade
• npm test -- --test-reporter=dot (482 tests)
• npm run check:binance-orderbook-trade
• git diff --check