Align Fin Agent API, AI Content, data connector and workflow export docs with the API (#747)

* Document AI Content scope, errors, pagination and external page fields

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

* Align data connector docs with API behaviour

Document OAuth scopes and the token scope error, add missing response and
request fields, extend execution result enums, fix example cursors and
examples to match actual responses, and document the create 400.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

* Align Fin Agent API and workflow export error responses and fields with the API

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

* Correct Fin, AI Content and data connector docs details

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

* Say that Fin Agent API escalation closes the original conversation

Also fix the content import source type description and the update request title.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

* Say an escalation workflow may still act on the conversation after complete

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

* Address review: internal_description, environment, transform return, markdown format, page limit

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

* Correct escalation, status, paging and data connector wording found in pre-review

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

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Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

Author: cathalging