fix(SUP-50249): Filtering "Video without Captions" in KMC and 'Captions' > "Not Available' in KMS showing entryIDs that have captions

[yambenari24]

Issue:
Live entries with a redirectEntryId (pointing to a VOD) were being indexed in Elasticsearch without captions because the indexing logic only looked at caption assets attached directly to the live entry. This caused a mismatch where the playback player displayed captions correctly (from the VOD), but Elasticsearch filters incorrectly reported no captions.

Fix:
Updated getCaptionElasticSearchData to check if a live entry has a redirectEntryId and, if so, fetch caption assets from the redirect target entry (VOD) for indexing. Added logging for transparency when fetching captions from the redirect target.

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