[StuartFerguson]

Summary

• Treat only null or empty line terminator strings as missing in the integration-test parser.
• Preserve LF, CRLF, and CR values so duplicate-profile requests reach duplicate validation.

Fixes #855.

Verification

• dotnet build FileProcessor.IntegrationTests/FileProcessor.IntegrationTests.csproj --configuration Release --no-restore
• RejectDuplicateFileProfileNameAndRequestType integration scenario passed.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-27T13:23:02.647533Z	4db486f	PR opened

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[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

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