Changed from '@project-serum/anchor' to 'bn.js' to match
other Drift SDK integrations. Fixes 'Cannot read properties
of undefined (reading '_bn')' error.
User can now test withdrawal with $5 minimum.
- Fixed LAST_WITHDRAWAL_TIME type (null | string)
- Removed parseFloat on health.freeCollateral (already number)
- Fixed getDriftClient() → getClient() method name
- Build now compiles successfully
Deployed: Withdrawal system now live on dashboard