[EvilWeasel]

The Windows desktop startup check failed before launching the app because 7z was absent from the runner's PATH.

Resolve 7-Zip through the installed desktop electron-builder's own toolset resolver, verify the resolved executable exists, and use that path for both installer and application-payload extraction. The existing extraction failures, launch/version checks and cleanup still run normally.

Validation:

• Reproduced the unchanged PowerShell step failing with 7z CommandNotFound.
• On Boat, the actual updated step extracts two small nested fixture archives with the builder-provided Linux binary and paths containing spaces. Invalid resolver paths, corrupt installers and a failing launch boundary still fail and clean up. This checks the shell contract; the Windows app-launch boundary is stubbed.
• All 28 existing Nightly workflow contract tests passed. The normal exact-base integration check passed formatting and its configured focused test; staged format/lint hooks passed.
• Parsed workflow comparison confirms that only this startup step's resolver and two command paths changed. The actual Windows desktop startup remains for the normal release workflow.

Model: GPT-6.1 Sol. Harness: Codex.

---

^{Open in [code]smith · Need help on this PR? Tag @codesmith-bot with what you need.}

[chatgpt-codex-connector]

Codex Review Summary: ✅ Completed

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-11-13T15:35:37.208919Z	3cc9605	PR opened

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review" or "@codex security review".

Codex reacts with 👀 while any review is running, comments if it has suggestions, and reacts with 👍 once all reviews finish with no findings.