fix: resolve undefined result variable in error-utils test (#1453)

[Bhavy12-cell]

Summary

Fixes #1453

Problem

In test/error-utils.test.ts, one test referenced a variable result
that was never declared or assigned:

const raw = 'duplicate key value...';
expect(result).toBe("An unexpected error occurred."); // ❌ result is undefined

This caused Vitest to crash with a ReferenceError on this test.

Fix

Added the missing variable assignment on the line before expect():

const result = getSafeApiErrorMessage(raw, "production"); // ✅

One line change. All other tests were already correct and untouched.

Files Changed

• test/error-utils.test.ts — added missing const result assignment

Testing

• All 9 tests now pass cleanly under Vitest
• No other files modified

[github-actions]

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