- Add detection and usage of GNU `tar` for platforms where BSD `tar` is incompatible with required options.
- Refactor `job.sh` to delegate all environment setup to newly introduced per-OS setup scripts.
- Add initial support for workflow setups via `workflow.kdl`, running pre-defined setup scripts before executing workflow steps.
- Integrate step-wise execution and logging for workflows, with structured NDJSON output for detailed traceability.
- Increment orchestrator version to 0.1.16.
Signed-off-by: Till Wegmueller <toasterson@gmail.com>
