=== a relocated engine copy (no ORCHESTRATOR_REPO_ROOT, no HARNESS_ENGINE_ROOT)
engine_root=[<T>/reloc/repo/harness/engine]
cfg_load (no argument) rc=0 name=[relocated] packs=[stack-packs/python-uv	stack-python-uv]
<T>/reloc/repo/harness/engine/plugins/stack-python-uv/standards/python.md
config: warning: cfg_migrate: no migration registered for schema 0 → 1 (expected <T>/reloc/repo/harness/engine/core/migrations/config/0-to-1.sh)
cfg_migrate (default registry) rc=1
engine_root (in-repo engine under ORCHESTRATOR_REPO_ROOT)=[<T>/reloc/elsewhere/harness/engine]
cfg_load (no argument, ORCHESTRATOR_REPO_ROOT) rc=0 name=[<none>]
engine_root (ORCHESTRATOR_REPO_ROOT without an engine)=[<T>/reloc/repo/harness/engine]
engine_root (HARNESS_ENGINE_ROOT)=[/explicit]
