SDK support for Batch Job Waiting (waitForRememberBulk)

[Kafiirr]

Currently, the SDK provides waitForRememberJob(job_id) for single uploads. However, when executing bulk inserts (e.g., using rememberBulk or multiple parallel calls), developers must poll the relayer in separate loops. This creates unnecessary HTTP overhead and risks hitting rate limits.

• Suggested: Add a native waitForRememberJobs(job_ids: string[], options?) method to the SDK, allowing the relayer to return statuses in batches.

[github-actions]

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