No-op endpoint for telemetry settings. The handler authenticates the current user, verifies the tenant-scoped users.role is admin or owner, ignores the request body, performs no database write, and returns the current ALGA_USAGE_STATS-derived status with a message explaining that telemetry cannot be changed through the API. Because this session-authenticated route is not currently in apiKeySkipPaths, API middleware also requires an x-api-key header to be present before the handler can run.