v2.1.43

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Changelog

• Added bifrost.plugins.telemetry.config.user_labels_enabled (default false) — adds user_id and user_name labels to every bifrost_* metric. Off by default because these are unbounded: they multiply metric series by end-user count, on top of a virtual_key_id label that already reaches tens of thousands of values in large deployments, and Prometheus cannot drop a label after the fact. Datadog and Splunk emit these dimensions unconditionally, since a costly tag can be dropped server-side there.