fix(scripts): replace GNU find -printf with POSIX basename

[dknos]

Summary

• Replaces GNU-only find -printf '%f\n' with POSIX-compatible find ... -exec basename {} \;
• Fixes silent failure on macOS/BSD where -printf is not available

Test plan

• Run backup-workspace.sh on Linux
• Verify output matches previous behavior
• Run shellcheck on the modified script

Fixes #1431

🤖 Generated with Claude Code

Summary by CodeRabbit

• Bug Fixes
  • Improved backup restore path selection logic to ensure correct identification of the most recent backup when restoring without a specific timestamp.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

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Review profile: CHILL

Plan: Pro

Run ID: fae032b8-6d0f-4847-bf73-e8ae841f2533

📥 Commits

Reviewing files that changed from the base of the PR and between c99e3e8 and 0f1334c.

📒 Files selected for processing (1)

• scripts/backup-workspace.sh

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📝 Walkthrough

Walkthrough

The script replaces a GNU-specific find -printf '%f\n' command with a POSIX-compatible alternative using find -exec basename {}. This fixes silent failures on macOS/BSD systems where the -printf option is unsupported.

Changes

Cohort / File(s)	Summary
Backup script compatibility scripts/backup-workspace.sh	Replaced GNU-only find -printf with POSIX-compatible find -exec basename in restore path selection logic to enable cross-platform functionality.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

A rabbit hops through backup trees,
Where BSD find was brought to knees—
GNU extensions caused dismay,
But POSIX fixes save the day! 🐰
Now every system finds its way.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: replacing GNU-only find -printf with POSIX-compatible basename, which directly addresses the core issue being fixed.
Linked Issues check	✅ Passed	The PR successfully addresses issue #1431 by replacing the GNU-only find -printf with POSIX-compatible find -exec basename, enabling cross-platform compatibility on macOS/BSD.
Out of Scope Changes check	✅ Passed	All changes are directly related to fixing the find -printf compatibility issue; no unrelated modifications are present in this minimal, focused changeset.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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