Update API specifications with fern api update

[github-actions]

Update API specifications by running fern api update.

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Note

Medium Risk
Although this is an OpenAPI-spec-only change, it can be client-breaking: several schemas are tightened with additionalProperties: false and the Share Link PATCH/DELETE operations and response codes are adjusted, impacting generated SDKs and validators.

Overview
Updates openapi.json to model OAuth consent activity by adding new action types (oauth-consent-grant/oauth-consent-deny) and schemas, and by enriching action/audit metadata with performedByClientId.

Expands auth/session and docs schemas by adding clientId/landscapeId to UserSession and adding content (markdown) to ADR variants.

Tightens import payload contracts by setting additionalProperties: false on multiple *Import schemas and updating the ModelObjectImport.parentId hierarchy description. Also broadens many endpoints’ documented error responses to include 403 Forbidden, and refines Share Link operations by defining an explicit PATCH update (with resetShortId) and separating DELETE (operationId: shareLinkDelete).

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