[Docs] Document Fast sessions and automation discovery

[roomote-community]

​Created by Roomote. View the task or mention @roomote for follow-up asks.

What changed

• Document how users and admins can review persisted Fast session transcripts, including access, context status, reply verification, and transcript limits.
• Document how admins can find recurring automations from the command palette.

Why this change was made

The new Fast sessions surface and recurring-automation discovery path were user-facing changes without matching public guidance.

Impact

Users can now find accurate public instructions for reviewing Fast conversations and locating recurring automations. There is no product behavior change.

Screenshots

[roomote-community]

1 issue outstanding. See task

• Update the stale “upcoming Fast runs view” availability disclaimer in apps/docs/automations.mdx:131-135 so it does not conflict with the new Fast sessions documentation.

_{Reviewed d45659f}

[roomote-community]

The new Fast sessions section says this view is available now, but apps/docs/automations.mdx:131-135 still tells readers that channel-less Fast conversations are only available in an “upcoming Fast runs view.” That leaves two contradictory instructions in the public docs. Update or remove the stale availability disclaimer in the same change.