- Change file mode from 644 to 755 for all project files
- Add chain_id parameter to get_balance RPC endpoint with default "ait-devnet"
- Rename Miner.extra_meta_data to extra_metadata for consistency
- Change blockchain block command to query local node at /rpc/blocks/by_hash/{hash} instead of coordinator
- Add fallback to /rpc/blocks/{height} for numeric block identifiers
- Implement block hash search across recent blocks (last 10) when direct lookup fails
- Revert client job submission endpoint from