c3cf11c5e4
Decision: CI stays hermetic (no dependency on the 10.100.0.35 box or its state), but must run the same engine. integration-fixtures.sh now takes the questdb/questdb:<tag> line from the #822 fixture compose file (10.0.1 today, same as the docker-dev overlay) and fails 'up' if it is missing; CI_QDB_IMAGE overrides for a trial. Documented in scripts/ci/README.md. Co-Authored-By: Claude <noreply@anthropic.com>