test: cover Terraform slash comments

[BeforeLights]

Summary

• add a Terraform // line-comment fixture to the safety scanner regression test

This is a final promotion-gate test-only fix to dev. CodeRabbit is not requested on this base branch; promotion PR #20 remains the reviewed promotion PR.

Verification

• node --test tools/repo-cli/test/terraform-safety.test.mjs
• corepack pnpm exec prettier --check tools/repo-cli/test/terraform-safety.test.mjs

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on base/target branches other than the default branch.

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: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: e644c998-bea8-402e-8ed9-1ad10e71b80d

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

---

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