* fix(web_search): Fix invalid model name sent to Perplexity
* chore: Only apply fix to direct Perplexity calls
* fix(web_search): normalize direct Perplexity model IDs
* fix: add changelog note for perplexity model normalization (#12795) (thanks @cdorsey)
* fix: align tests and fetch type for gate stability (#12795) (thanks @cdorsey)
* chore: keep #12795 scoped to web_search changes
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Co-authored-by: Sebastian <19554889+sebslight@users.noreply.github.com>
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