feat(network): add state persistence for P-Chain data across restarts #7
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This change fixes the loss of P-Chain state and custom subnet tracking on node restart by implementing automatic snapshot save/load with enhanced state tracking. Changes: - Add --no-snapshot flag to network start command for fresh starts - Add --dev-mode flag to enable automatic subnet tracking - Add localnet.SaveNetworkState() called on network stop to persist subnet registrations, validators, and network configuration - Add NetworkStateData struct with SubnetStateInfo and ValidatorStateInfo - Add comprehensive unit tests for state persistence functionality The state is saved to network_state.json in the network data directory and survives start/stop cycles, ensuring deployed subnets and validators are tracked across restarts.
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Summary
Problem
Loss of P-Chain state or custom subnet tracking on node restart. When running
lux network startandlux network stopcycles, the P-Chain registrations, subnet data, validator sets, and balances were not being preserved.Solution
This PR implements automatic state persistence by:
network_state.jsonduringnetwork stopnetwork start--no-snapshotflag for users who want a clean start--dev-modeflag for automatic subnet trackingTest plan