[CI baseline] test run off main — do not merge

[ymc9]

Draft PR to get a Build-and-Test run on the current main code (plus one empty commit, since the workflow only triggers on pull_request).

Purpose: establish a baseline for the intermittent CLI-test failures seen on PR #2744 (three runs, three different packages/cli tests, all with the signature "zen CLI subprocess exits 0 but its output file is missing"). If this baseline run shows the same class of failure on main, the issue predates all recent changes and is environmental; if it's green repeatedly, the trigger is somewhere in the recent dev state.

Will be closed without merging.

🤖 Generated with Claude Code

[coderabbitai]

Important

Review skipped

Draft detected.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: db398c40-0e48-49fd-b479-5e53a52195f5

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch ci-baseline-main

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[ymc9]

Diagnostic mission accomplished — this PR's instrumentation identified the root cause of the intermittent CLI-test failures (version-check fetch stranding → event-loop drain → silent exit 0) and verified the fix over 3 consecutive green runs. The clean fix is in #2767. Closing and deleting the branch; logs remain available on this PR's check runs.