Create Mining Transaction Type

Summary

Create a new transaction type for mining submissions.

Background

Miners need a specific transaction type to submit their proof-of-work solutions and participate in mining epochs.

Requirements

• Define MiningSubmission transaction type
• Add transaction validation logic
• Implement executor for processing mining transactions
• Handle mining account references

Implementation Details

type MiningSubmission struct {
    TransactionBody
    
    MiningSignature *LxrMiningSignature
    MiningAccount   *url.URL  // Target mining account
    EpochNumber     uint64    // Which epoch this submission is for
}

Acceptance Criteria

• Transaction type defined in protocol/transactions.yml
• Transaction executor implemented in internal/core/execute/v2/
• Validation checks mining account exists
• Validation checks miner is registered (in keybook)
• Validation checks epoch is current
• Unit tests for transaction validation
• Integration tests for submission flow

Dependencies

• Depends on: #3667 (LxrMiningSignature Type)

Related

• Epic: &37
• Specification: 32-lxr-mining.md