Feat: Withdrawals

[QuantumExplorer]

Currently in version 1.2 Withdrawals were not enabled. In order to enable withdrawals we need to do the following.

Improvements

• Create a new protocol version 4.
• Create a new state transition version of credit withdrawals 1.
• Write the correct validation as version 1.
• Review and fix code of credit withdrawals pass 1.
• Review and fix code of credit withdrawals double check. @shumkov @QuantumExplorer
• Write unit tests for credit withdrawals.
• Write strategy tests for credit withdrawals.
• Set versions of protocol version 4.
• Write delay of withdrawals till special window.
• Implement Withdrawal limits.
• Increase fees for withdrawals to match actual network cost.
• Write observability mechanisms for withdrawal limits.
• Write observability mechanisms for withdrawal queue.
• System to resign expired withdrawals.
• refactor(drive): remove duplicated withdrawal amount validation #2191
• feat(sdk): enable withdrawals v1 in JS SDK #2201

Withdrawal contract improvements

• transactionIndex must be unique index
• revisit contract (nothing to be done) @shumkov @QuantumExplorer

Testing

• Test withdrawals on local network.
• Test withdrawals on devnet.
• Test withdrawals on testnet.
• Try attacking withdrawals.
• Add unit tests for invalid withdrawals. @shumkov
• Test Withdrawal limits. @shumkov @lklimek
• Test expired withdrawals.
• Test resigning of withdrawals.
• Send to Core another withdrawal with the same index. @shumkov
• Stress test withdrawals.
• Verify that transactions are not pooled and broadcasted on same block.
• Enable withdrawal test in test suite #2204
• Start new networks with latest protocol version #2205
• https://docs.google.com/document/d/1QAb3NxNdVJIYl_yPx92z76tX9xnDcICRg2ZWnrMkLyo/edit @pauldelucia @lklimek

[shumkov]

@QuantumExplorer why are you going to introduce a new state transition version?