MLE-23024 Restoring Hadoop files

[rjrudin]

Sigh, turns out we still need these on Windows.

[github-actions]

Copyright Validation Results
Total: 8 | Passed: 0 | Failed: 0 | Skipped: 8 | at: 2025-09-29 17:03:14 UTC | commit: a88fbd2

⏭️ Skipped (Excluded) Files

• .copyrightconfig
• flux-cli/build.gradle
• flux-cli/hadoop/README.txt
• flux-cli/hadoop/hadoop.dll
• flux-cli/hadoop/libhadoop.so
• flux-cli/hadoop/msvcr100.dll
• flux-cli/hadoop/msvcr120.dll
• flux-cli/hadoop/winutils.exe

✅ All files have valid copyright headers!

[Copilot]

Pull Request Overview

This PR restores Hadoop native library files that are required for Flux to run on Windows. The files were previously removed but testing has shown they are still necessary for Windows compatibility.

• Adds back 5 Hadoop native files (DLLs and executables) needed for Windows operation
• Includes documentation explaining the rationale for these files and their continued necessity

Reviewed Changes

Copilot reviewed 2 out of 7 changed files in this pull request and generated 1 comment.

File	Description
flux-cli/hadoop/README.txt	Documentation explaining which Hadoop files are included and why they're needed for Windows compatibility
flux-cli/build.gradle	Build configuration to include Hadoop native libraries in the distribution packages

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[Copilot]

There's an extra space at the end of line 6. Remove the trailing whitespace.

Suggested change

	other files are still being retained just in case.
	other files are still being retained just in case.