ci: drop unused CS_ZEROKMS_HOST and CS_CTS_HOST overrides

[coderdan]

Summary

• The protect SDK derives the CTS host from the workspace CRN and the ZeroKMS host from the services claims in the CTS-issued JWT, so the CS_ZEROKMS_HOST / CS_CTS_HOST lines we were echoing into the four package .env files in CI were never consulted at runtime.
• Remove them from the protect, stack, protect-dynamodb, and drizzle .env-creation steps. (Two of the four blocks also had a copy-paste typo writing the values into ./packages/protect/.env; deleting them moots that as well.)

Same change is already on PR #393's branch and CI passed there with the dependabot secrets; landing it on main first ensures the standard Actions env stays green before we merge that PR.

Test plan

• CI "Test JS" workflow passes on this PR

Summary by CodeRabbit

• Chores
  • Updated CI/CD workflow configuration to optimize environment variable handling during test setup.

[changeset-bot]

⚠️ No Changeset found

Latest commit: f715851

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[coderabbitai]

📝 Walkthrough

Walkthrough

Removes CS_ZEROKMS_HOST and CS_CTS_HOST environment variable writes from .env file creation steps for four packages in the test workflow, consolidating variable definition to the e2e-tests job's job-level env.

Changes

Environment Variable Consolidation

Layer / File(s)	Summary
Workflow Configuration .github/workflows/tests.yml	Removes echo commands that appended CS_ZEROKMS_HOST and CS_CTS_HOST to .env files in ./packages/protect/, ./packages/stack/, ./packages/protect-dynamodb/, and ./packages/drizzle/ during the install job's setup steps.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

A rabbit tidies workflow lines,
Where env vars once crossed all signs.
Now consolidated, clean and bright,
The CI pipeline runs just right! 🐰✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title directly and concisely describes the main change: removing unused environment variable overrides from CI configuration.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch dan/ci-drop-unused-host-overrides

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