Implement a CLI command or API endpoint allowing users to list and view files in the mounted storage of the active Harness worker. --- *Part of Epic: Epic: Harness Worker Extensibility & Observability (https://github.com/google/ax/issues/108)*
Implement a CLI command or API endpoint allowing users to list and view files in the mounted storage of the active Harness worker.
Part of Epic: Epic: Harness Worker Extensibility & Observability (#108)