Changelog — nu-node

All notable changes to this project will be documented in this file. Format: Keep a Changelog

[Unreleased]

nu-vm/executor.rs — execute_node_submit: validates entry fee (25 NUT), creates StoryNodeState { Pending } in RocksDB indexed by temp_id
nu-vm/executor.rs — execute_vote_register: validates node is VotingOpen, locks 10 NUT stake until vote end
nu-vm/executor.rs — execute_vote_cast: computes weight as √(staked) × pon_score, appends WeightedVote to node
nu-vm/executor.rs — execute_stake_op: stake/unstake with balance and staked field updates
nu-state/accessor.rs — StateAccessor extended with get_account/set_account, get_node/get_node_by_temp/set_node, lock_stake/unlock_stake/add_nft/record_vote
nu-rpc/handlers.rs — nu_getBlock: reads "block:{height}" from RocksDB, returns serialized Block or null
nu-vm/rewards.rs — SHELL_PER_NUT = 1_000, NUT_PER_NU = 100, NODE_REWARD_NUT = 100 constants; currency hierarchy Shell → NUT → NU

nu-vm/engine.rs — execute_block: runs all txs in a block against StateDb; TokenTransfer fully applied, other variants produce a "not implemented" receipt
src/block_loop.rs — tokio task producing one block per slot (6 s) in dev mode; drains mempool, executes txs, removes successful ones, persists block to RocksDB
--dev --validator flags in main.rs trigger block production loop on startup

StateAccessor trait: set_balance / inc_nonce now take &self (RocksDB provides interior mutability — no &mut required at the Rust level)
StateDb wrapped in Arc<Mutex<StateDb>> — block loop holds write lock per block, RPC holds read lock for nu_getAccount
nu-vm now depends on nu-block (was implicit via engine)

nu_sendRawTx — decodes JSON RawTransaction, deduplicates by tx_id, inserts into mempool; returns { tx_id } on success
TxPayload enum in nu-block/types.rs — all variants with priority_hint()
TxPriority derived from TxPayload in nu-mempool (Critical > High > Normal)
nu-rpc axum HTTP server on POST /rpc — dispatches JSON-RPC 2.0 requests
nu_chainInfo — returns chain_id and node_version
nu_getAccount — reads AccountState from RocksDB; returns empty account for unknown addresses (zero balance, nonce 0)
StateAccessor trait implemented on StateDb — canonical single source of truth for balance and nonce access
--dev, --validator, --rpc-addr, --db-path, --chain-id CLI flags via clap
Rust workspace scaffold with six crates: nu-consensus, nu-mempool, nu-state, nu-block, nu-rpc, nu-vm
Dockerfile.dev — multi-stage Rust build (builder: rust:1.79-slim, runtime: debian:bookworm-slim)