- Rename env vars HOT_WALLET_ADDRESS/USERNAME to C2C_BOT_WALLET_ADDRESS/USERNAME
in mining-blockchain-service to avoid conflict with existing hot wallet
- Update docker-compose.2.0.yml with new env var names
- Change all "dUSDT" labels to "绿积分" on C2C Bot admin page
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>