Function map_solana_status_to_transaction_status 

pub fn map_solana_status_to_transaction_status(
    solana_status: SolanaTransactionStatus,
) -> TransactionStatus

Maps Solana on-chain transaction status to repository transaction status.

This mapping is used consistently across status checks to ensure uniform status transitions:

• Processed → Mined: Transaction included in a block
• Confirmed → Mined: Transaction confirmed by supermajority
• Finalized → Confirmed: Transaction finalized (irreversible)
• Failed → Failed: Transaction failed on-chain