feat: adds a new subcommand to compare snapshot files with mainnet RPC #499
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Purpose: This feature enables developers to compare a local snapshot of Solana account states
Command Path: Added surfpool state diff <SNAPSHOT_FILE> [MAINNET_URL]
This new command allows developers to compare a local Solana account snapshot file against the live mainnet. It loads a JSON snapshot, fetches the latest state for each account from mainnet RPC, and performs a detailed comparison of lamports, owner, executable status, rent epoch, and data length. The tool provides clear, formatted output highlighting differences and a summary count, essential for debugging state drift and validating local test scenarios against the real network