TA-4733: Exclude symlinks in folder export

[LaberionAjvazi]

Description

Used the lstat function to check if the source directory or any of its nested files are symbolic links.

• If the sourceDir is symLink, an error will be thrown to avoid reading target files that user may not have access to
• If a nested file/folder is symLink, it will be excluded from the resulting zip since the isFile and isFolder of the lstats result will return false if the path is a symLink.

Other: Removed unused copyDirectoryToCurrentLocation method.

Relevant links

• Jira: TA-4733

Checklist

• I have self-reviewed this PR
• I have tested the change and proved that it works in different scenarios
• I have updated docs if needed

---

Note

Exclude symlinks when zipping directories (error on symlink source) and add tests to validate behavior.

• Core utils (src/core/utils/file-service.ts):
  • zipDirectoryInBatchExportFormat:
    • Throw FatalError if sourceDir is a symbolic link.
    • Use fs.lstatSync to detect and skip symlinked files/folders.
  • Remove copyDirectoryToCurrentLocation method.
• Tests (tests/core/utils/file.service.spec.ts):
  • Add tests ensuring symlink source throws and symlinked files/folders are excluded from the zip.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

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