Integrate OTEL SDK to enable logging, tracing, and metric reporting from the Harness worker. --- *Part of Epic: Epic: Harness Worker Extensibility & Observability (https://github.com/google/ax/issues/108)*
Integrate OTEL SDK to enable logging, tracing, and metric reporting from the Harness worker.
Part of Epic: Epic: Harness Worker Extensibility & Observability (#108)