New xce-test-multihost skill deploys one controller/scheduler node
plus two named xcecd_virtual workers, following xce-test-resources's
single-node deploy pattern and xce-test-ha's pre-flight zombie-process/
port-check convention (chosen over a fresh-mktemp-per-run model
specifically because a meaningful pre-flight check needs a stable
directory -- see tasks.md's Implementation Notes). Confirms all four
roles join via their own log lines and tears down cleanly with a
HARNESS_READY sentinel. No job scenario wired in yet -- that's tasks
4.2/4.3.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XYdtrEWWZfKRRGED7raEYg
Rongsong Shen
0313b910a9