[Go] Missing Privacy setting blocks Muse Spark 1.3 Contributor

Bug description

OpenCode Go fails when using the Muse Spark 1.3 Contributor model:

Upstream request failed: This Go model trains on request data. Allow paid endpoints that train on request data in your workspace's Privacy settings to use it.

The redesigned OpenCode Console does not expose the referenced Privacy setting. In the workspace settings, only General, Account, Billing, and Security are available; there is no Privacy page or toggle for allowing paid endpoints that train on request data.

This is different from #47562: that report is about an existing toggle reverting to off. In this case, the Privacy setting is missing entirely.

Steps to reproduce

1. Open the redesigned OpenCode Console.
2. Connect or use OpenCode Go.
3. Select opencode-go/muse-spark-1.3-contributor (Muse Spark 1.3 Contributor).
4. Send a request.
5. Observe the upstream request failure above.
6. Open workspace Settings and look for the referenced Privacy setting.

Expected behavior

Either the Privacy setting should be visible and usable, or the error should explain the supported way to enable this model in the redesigned Console.

Actual behavior

The request is blocked, and the referenced Privacy setting cannot be found anywhere in the workspace Console settings.

Environment

• Product: OpenCode Console / OpenCode Go
• Model: opencode-go/muse-spark-1.3-contributor
• Date observed: 2026-09-19

Start in the redesigned OpenCode Console workspace Settings and trace the model-access or error-handling entry points for OpenCode Go and opencode-go/muse-spark-1.3-contributor. Reproduce the failed request, then verify that the Privacy setting is usable or that the error explains the supported alternative.