Fix(undo redo)/delete source folder after undo

[mikeleppane]

Description

Fixes # (issue)

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Performance improvement
• Code refactoring
• Test improvement
• CI/CD improvement
• Other (please describe):

How Has This Been Tested?

• Unit tests pass locally with cargo test
• Integration tests pass
• Manual testing completed
• Tested on Linux
• Tested on macOS
• Tested on Windows

Test Configuration:

• Rust version:
• OS:
• Terminal:

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have run cargo fmt to format my code
• I have run cargo clippy -- -D warnings and addressed all issues
• I have updated the CHANGELOG.md file (if applicable)

Screenshots / Terminal Output

Screenshots

Terminal Output

<!-- Add terminal output here -->

Performance Impact

• This change has no performance impact
• This change improves performance
• This change may degrade performance

Breaking Changes

• This change is backwards compatible
• This change requires migration steps

Additional Context

Related Issues / PRs

• Related to #
• Depends on #
• Blocks #

Reviewer Notes

---

For Maintainers

• Changes are covered by tests
• Documentation has been updated
• CHANGELOG.md has been updated (if needed)
• Performance impact has been considered
• Security implications have been reviewed
• Cross-platform compatibility verified

[codspeed-hq]

CodSpeed Performance Report

Merging #7 will create unknown performance changes

_{Comparing fix(undo-redo)/delete-source-folder-after-undo (055e9d4) with main (f9ed9b9)}

Summary

⚠️ No benchmarks were detected in both the base of the PR and the PR.\

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 88.83495% with 23 lines in your changes missing coverage. Please review.

Project coverage is 56.51%. Comparing base (f9ed9b9) to head (80f9807).

Files with missing lines	Patch %	Lines
src/core/undo_manager.rs	88.83%	23 Missing ⚠️

❌ Your project status has failed because the head coverage (56.51%) is below the target coverage (80.00%). You can increase the head coverage or adjust the target coverage.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #7      +/-   ##
==========================================
+ Coverage   55.74%   56.51%   +0.76%     
==========================================
  Files          29       29              
  Lines        8386     8589     +203     
==========================================
+ Hits         4675     4854     +179     
- Misses       3711     3735      +24     

Files with missing lines	Coverage Δ
src/core/undo_manager.rs	78.67% <88.83%> (+4.03%)	⬆️

... and 1 file with indirect coverage changes

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