🧪 test: add missing-field error path test for contact API

[hatimhtm]

🎯 What: The testing gap addressed
The contact API (app/api/contact/route.ts) was missing test coverage for the initial validation branch, which throws a 400 error when one or more of the required fields (name, email, brief) are missing from the request body.

📊 Coverage: What scenarios are now tested
The app/api/contact/route.test.ts now explicitly covers:

• Missing email
• Missing name
• Missing brief
• All fields missing

✨ Result: The improvement in test coverage
Increased the coverage of error edge-cases for form submissions, ensuring the frontend won't encounter unexpected server 500 exceptions if data shape rules are violated. Also updated the NPM test script configuration to run tests with tsx properly resolving extensions.

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PR created automatically by Jules for task 11080214693524475361 started by @hatimhtm

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Project	Deployment	Actions	Updated (UTC)
portfolio	Ready	Preview, Comment	Mar 21, 2026 11:21am