Add fin guidance applied schema in event_details in the conversations API

[toquis]

Why?

To support the inclusion of a new conversation_part.type value: fin_guidance_applied. This update ensures the OpenAPI spec reflects the new object structure returned by the Conversations API when this part type is present.

What’s included?

• Added a new schema under components/schemas: fin_guidance_applied

  • Describes the structure of the guidance objects applied to a conversation part

  • Includes id and title as required fields for each guidance

• Updated the event_details schema to include a reference to fin_guidance_applied, allowing this to be documented alongside other supported event types

[davymalone]

Are these necessary? I think they're only relevant if this is an input object, but the concept of required attributes on a response object doesn't really make sense I don't think, WDYT?

[davymalone]

This looks good, the change needs to be made in this repo as well. You can run the developer-docs app locally and see your changes in the local version of the documentation to verify this change is exactly what you want. See the readme. Once you've checked that's all ok and opened the PR there I can approve both. Make sure to include screenshots in the developer-docs PR so I can verify the change 👌

[davymalone]

Just realised as well, you're going to want to make these changes in the 2.13 version as well, 0 here refers to unstable but since your new change isn't versioned we'll need to update the docs for whichever version we're already documenting these event details