fix: use Content-Type header in auth.ts

[Nixxx19]

Fixes #1985

Summary

Fixes invalid HTTP header name in auth.ts: replaces ContentType with "Content-Type" so the whoami request sends a valid Content-Type header.

Changes

• Use "Content-Type": "application/json" instead of ContentType: "application/json" in packages/cli/src/cli/utils/auth.ts (line 25)
• Aligns with HTTP spec and with existing usage in observability.ts

Testing

Business logic tests added:

• No new unit tests (single-line header fix; behavior unchanged for correct servers)
• Verified: grep "ContentType" returns nothing in auth.ts
• Verified: auth.ts line 25 uses "Content-Type"
• Verified via Node Headers that ContentType yields null for get('Content-Type') and "Content-Type" works
• All tests pass locally

Visuals

Verification (Content-Type fix):

Screenshot below: terminal output from the verification command showing:

1. No ContentType in auth.ts → OK
2. auth.ts line 25 → "Content-Type": "application/json",
3. Headers check → ContentType → null; "Content-Type" → ok

Checklist

• Changeset added (if version bump needed)
• Tests cover business logic (not just happy path)
• No breaking changes (or documented below)

Summary by CodeRabbit

• Bug Fixes

  • Corrected HTTP header formatting for authentication requests (uses standard Content-Type), improving compatibility with authentication services.

• Chores

  • Added a changeset entry to document and release the patch.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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📝 Walkthrough

Walkthrough

A single HTTP header name was corrected in the authentication utility from the invalid camelCase ContentType to the standard hyphenated format "Content-Type" to ensure proper header transmission in API requests.

Changes

Cohort / File(s)	Summary
HTTP Header Correction packages/cli/src/cli/utils/auth.ts	Changed header key from ContentType to "Content-Type" in the authenticator request.
Release metadata .changeset/fast-badgers-thank.md	Added a changeset noting the patch that fixes the Content-Type header in the CLI auth utility.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Suggested reviewers

• cherkanovart
• Copilot

Poem

A rabbit hops with glee,
ContentType? No — hyphens we see!
"Content-Type" set just right,
Headers now take flight ✨
Hooray for tidy HTTP.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'fix: use Content-Type header in auth.ts' clearly and concisely describes the main change: correcting the HTTP header name from ContentType to Content-Type.
Description check	✅ Passed	The description includes a summary, detailed changes, comprehensive testing verification, and a filled-out checklist covering the key requirements from the template.
Linked Issues check	✅ Passed	The PR successfully fixes the issue #1985 by replacing the invalid 'ContentType' header with the correct 'Content-Type' in auth.ts, and includes verification demonstrating the fix works correctly.
Out of Scope Changes check	✅ Passed	All changes are directly scoped to fixing issue #1985: correcting the HTTP header in auth.ts and adding the required changeset file; no extraneous changes are present.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[AndreyHirsa]

@Nixxx19 Hi! Can you please add changeset?

[Nixxx19]

@Nixxx19 Hi! Can you please add changeset?

hi @AndreyHirsa, so sorry about that! i completely missed it. i've just added the changeset now. thanks for the heads-up!