Update API specifications with fern api update

[github-actions]

Update API specifications by running fern api update.

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Note

Medium Risk
Medium risk because this updates the public OpenAPI contract across many endpoints (new request/response shapes, stricter import schemas, and additional 403 responses), which can break generated clients and integrations if not coordinated.

Overview
Updates the OpenAPI spec to track OAuth consent activity by adding oauth-consent-grant/oauth-consent-deny action types, new ActionOAuth* schemas, and a performedByClientId field on action/audit records.

Expands several API models: ADRs now include markdown content, UserSession includes OAuth clientId/landscapeId, ModelObjectExpanded can expand flows, and diagram exports accept a maxWidth option.

Tightens and extends endpoints/contracts: diagram description generation now supports filtering by modelObjectIds, import payload schemas disallow unknown fields (additionalProperties: false) and clarify group parenting rules, Share Link now has a proper PATCH update endpoint alongside DELETE, and many operations now explicitly document 403 Forbidden responses.

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