chore(ORCH-111): retrigger merge-gate re-test (flaked under host CPU starvation)
The merge-gate re-test bounced ORCH-111 to development with 1 failed + 40 errors in 488s — a resource-exhaustion signature, NOT a code defect: - This branch is watchdog-only (watchdog/** + compose); it touches no src/, no STAGE_TRANSITIONS/QG_CHECKS/check_*, and no tests/test_stage_engine.py. - The failing tests (test_stage_engine.py::TestStagingInfraTolerance tc02/tc12/tc13/tc14) are outside this branch's scope, pass in isolation (5 passed/19s), and pass right after the new watchdog tests (105 passed). tc14 takes NO fixtures yet "errored" — a systemic/host failure, not logic. - Host load was ~10-12 on a 4-core box at re-test time (the exact orphaned- pytest CPU-starvation incident ORCH-111 alerts on; ORCH-111 by design only observes, it does not reap — BR-3). Evidence the branch is sound: full `pytest tests/` is green locally (1933 passed, 0 failed, 0 errors in 267s, well under the 600s budget) and Gitea CI on the branch HEAD is green (push + pull_request). Empty commit to re-run the pipeline now that host load has dropped (10.5 -> 6). Refs: ORCH-111 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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