"/health":
    get:
        tags: [Health]
        operationId: getHealth
        summary: Liveness probe
        description: |
            Unauthenticated health probe. Returns the literal string `"OK"` as
            `text/plain`. Used by load balancers and uptime monitors.
        security: []
        responses:
            "200":
                description: Server is up.
                content:
                    text/plain:
                        schema:
                            type: string
                            example: OK
