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 published OpenAPI contract (new fields, new/changed request schemas, and many new 403 responses), which can break generated clients and request validation if consumers are not updated.

Overview
Refreshes openapi.json with new OAuth consent audit/action types (including ActionOAuth and performedByClientId) and extends session metadata (UserSession.clientId/landscapeId).

Expands several schema capabilities: ADRs now include markdown content, diagram description generation accepts an optional modelObjectIds filter and image export adds maxWidth, and model-object expansion adds flows/flowsExpanded. Import-related schemas are tightened with additionalProperties: false and updated hierarchy rules for ModelObjectImport.parentId.

API surface is clarified with widespread addition of 403 Forbidden responses, and the share-link endpoint is corrected to expose distinct PATCH update (with optional resetShortId) and DELETE operations.

^{Written by Cursor Bugbot for commit 7f10116. This will update automatically on new commits. Configure here.}