feat: added REUSE compliance check action

[mfranzke]

Description

https://github.com/fsfe/reuse-action

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

Testing

• Tests pass locally
• Added tests for new functionality
• Updated existing tests
• Manual testing completed

Checklist

• My code follows the project's style guidelines
• I have performed a self-review of my 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

Browser Testing

If applicable, please test in the following browsers:

• Chrome
• Firefox
• Safari
• Edge

Performance Impact

If this change affects performance:

• I have run performance benchmarks
• Performance impact is documented
• Performance regression is acceptable for the added functionality

Breaking Changes

If this introduces breaking changes, please describe:

Additional Notes

Any additional information that reviewers should know.

[changeset-bot]

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Latest commit: 272785d

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[Copilot]

Pull Request Overview

This PR adds a GitHub Actions workflow to automatically check REUSE compliance on every push and pull request. REUSE is a specification for declaring copyright and licensing information in a standardized way.

• Introduces automated REUSE compliance checking using the official FSFE action
• Configures the workflow to run on push and pull request events
• Sets appropriate permissions for the workflow execution

[github-actions]

🚀 Performance Benchmark Results

Metric	Value	Status
Initialization Time	0.60ms	✅
Avg Processing Time	0.2590ms	✅
Total Processing Time (1000x)	259.00ms	ℹ️

✅ All benchmarks passed!

[github-actions]

🚀 Performance Benchmark Results

Metric	Value	Status
Initialization Time	0.50ms	✅
Avg Processing Time	0.2391ms	✅
Total Processing Time (1000x)	239.10ms	ℹ️

✅ All benchmarks passed!

[github-actions]

🚀 Performance Benchmark Results

Metric	Value	Status
Initialization Time	0.50ms	✅
Avg Processing Time	0.2721ms	✅
Total Processing Time (1000x)	272.10ms	ℹ️

✅ All benchmarks passed!

[github-actions]

🚀 Performance Benchmark Results

Metric	Value	Status
Initialization Time	0.50ms	✅
Avg Processing Time	0.2670ms	✅
Total Processing Time (1000x)	267.00ms	ℹ️

✅ All benchmarks passed!