Reusable preflight for tester matrices. It supports read-only verify and test-environment-only prepare, and writes per-check YAML/CSV evidence for artifacts, tester nodes, devices, network, services, and fixture/cleanup contracts. This project assumes mobile album/photo/IME capabilities; journey cases exercise them and preflight does not gate them or read authorization environment variables.

Run the self-tests with:

python3 -m unittest discover -s skills/test-preflight/tests
python3 /home/ace/.codex/skills/.system/skill-creator/scripts/quick_validate.py skills/test-preflight