feat: Replace sync normalized-data with async flow (API-432)

[hilnius]

Showcase the recommended integration pattern for generate-normalized-data-async with a shared pollUntilSucceeded helper: poll after 10 seconds, stop after 5 minutes

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[cursor]

Timeout check precedes fetch, causing premature timeout

Medium Severity

In the polling loop, the deadline check on line 23 runs before fetchJob() on line 27. This means on the final iteration, the function throws a timeout error without making one last fetch. The effective timeout is timeoutMs - intervalMs (e.g. ~4 min 50 s instead of 5 min). A job that succeeds during the last sleep interval is never seen, producing a false timeout. Moving the deadline check after the fetch-and-status-check block fixes this.

 

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