[codex] note external review schedulers

[dd3ok]

Summary

• Add a short README note that external schedulers such as cron may prompt periodic explicit WATCHLIST.md reviews.
• Keep the scheduler outside the skill boundary and clarify it must not mutate items, run checks, or promise autonomous wakeups.
• Add the same note to README.ko.md.

Validation

• git diff --check origin/main...HEAD
• PYTHONDONTWRITEBYTECODE=1 python3 -m unittest discover -s evals -p 'test_*.py'
• python3 evals/check_policy_markers.py

[gemini-code-assist]

Code Review

This pull request updates the watchlist-md skill by standardizing field requirements, refining ID generation logic with timezone precedence, and adding safety guidelines for sensitive links. It also documents external scheduler usage and the --strict-safety flag in the README files, with corresponding updates to policy markers and tests. Review feedback suggested including ID in the list of required fields for open items in both English and Korean documentation to ensure consistency with the skill's core instructions.