Add .gitattributes to enforce LF line endings for shell scripts

[r23riopel]

Summary
Adds a .gitattributes rule to ensure shell scripts (*.sh) are always checked out with LF line endings.

Motivation
On Windows, Git can convert shell scripts to CRLF depending on a user's Git configuration. When those scripts are mounted into Linux containers, Docker/WSL may fail to execute them because the interpreter path is treated as /bin/bash\r.

Result
This change preserves LF line endings for shell scripts across platforms and helps avoid Docker startup failures for Windows developers.

Summary by CodeRabbit

• Chores
  • Standardized line endings for shell scripts to improve consistency across different operating systems and development environments.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: a9a46247-c0b6-49dd-88ff-44a985d418e7

📥 Commits

Reviewing files that changed from the base of the PR and between 09bfc88 and 77f76e6.

📒 Files selected for processing (1)

• .gitattributes

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📝 Walkthrough

Walkthrough

A single line is added to .gitattributes enforcing LF line endings (eol=lf) for all *.sh shell script files.

Changes

Shell Script Line Ending Enforcement

Layer / File(s)	Summary
LF rule for shell scripts .gitattributes	Adds *.sh eol=lf to enforce Unix line endings on all shell scripts.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~1 minute

Poem

A line in the file, so simple and slight,
"Give shell scripts their endings of LF tonight!"
No CRLF creeping, no Windows in sight,
The rabbit hops onward with Unix delight. 🐇✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the change to enforce LF line endings for shell scripts via .gitattributes.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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