The network toggle in Settings was saving to database via electron API
but getCurrentNetwork() in transaction.ts reads from localStorage.
This caused the balance display to use wrong RPC endpoint after switching.
Now syncs to localStorage when switching networks to ensure consistency.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>