feat: Log the original transaction status

[dan437]

Description

The transaction API now returns a new originalTransactionStatus field in the batch status response. This PR:

• Adds OriginalTransactionStatus enum with all possible values (VALIDATED, REVERTED, CANCELLED, FAILED_WOULD_REVERT, etc.)
• Adds originalTransactionStatus to the SmartTransactionsStatus type
• Includes stx_original_transaction_status in getSmartTransactionMetricsProperties, so it's tracked in "STX Status Updated" and "STX Confirmed" events
• Includes originalTransactionStatus in the error message set by markRegularTransactionsAsFailed, so it reliably appears in the "Transaction Finalized" event's error field for failed/cancelled smart transactions

Changes

• src/types.ts — new OriginalTransactionStatus enum, typed field on SmartTransactionsStatus
• src/utils.ts — added to metrics properties and failure error message
• src/index.ts — exported OriginalTransactionStatus
• src/utils.test.ts — tests for the new behavior

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Note

Low Risk
Adds a new optional status field and only uses it for analytics properties and error-message enrichment; core transaction flow is unchanged aside from message formatting.

Overview
Adds a new OriginalTransactionStatus enum and threads an optional originalTransactionStatus field through SmartTransactionsStatus (and exports it publicly).

Includes this value in getSmartTransactionMetricsProperties as stx_original_transaction_status and appends it to the error message generated by markRegularTransactionsAsFailed when present, with tests covering both behaviors.

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