## Description

<!-- Describe your changes in detail -->
This PR addresses/fixes/implements...

## Related Issue

<!-- Link to the issue this PR resolves -->
Fixes #(issue number)
Closes #(issue number)
Related to #(issue number)

## Type of Change

<!-- Mark the relevant 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
- [ ] 🎨 Code style/formatting change (no functional change)
- [ ] ♻️ Code refactoring (no functional change)
- [ ] ⚡ Performance improvement
- [ ] ✅ Test additions or updates

## Motivation and Context

<!-- Why is this change necessary? What problem does it solve? -->
This change is necessary because...

## Testing

<!-- Describe the tests you ran and how you verified the changes -->
**Tested Scenarios:**

1. **Test case 1**: ... [ ] Passed / Failed
2. **Test case 2**: ... [ ] Passed / Failed
3. **Test case 3**: ... [ ] Passed / Failed

**Test Files Used:**
- `test1.srt` - Description
- `test2.vtt` - Description

**Commands Run:**
```bash
cargo test
cargo clippy -- -D warnings
cargo fmt
```

**Manual Testing:**
- [ ] Tested with .srt files
- [ ] Tested with .vtt files
- [ ] Tested with different encodings (UTF-8, UTF-16 LE, Windows-1252)
- [ ] Tested edge cases (empty files, large files, special characters)

## Screenshots (if applicable)

<!-- Add screenshots or recordings showing the changes -->
| Before | After |
|--------|-------|
| ![Before] | ![After] |

## Checklist

<!-- Ensure your PR meets these requirements -->
- [ ] My code follows the style guidelines of this project (`cargo fmt`)
- [ ] 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 (`cargo clippy -- -D 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 (`cargo test`)
- [ ] I have updated the README.md if applicable
- [ ] My commit messages follow the [Conventional Commits](https://www.conventionalcommits.org/) specification

## Breaking Changes

<!-- If this is a breaking change, describe the impact and migration path -->
**Affected Users:**
- Users who rely on...

**Migration Path:**
1. Step 1: ...
2. Step 2: ...

## Performance Impact

<!-- Describe any performance implications -->
- [ ] No significant performance change
- [ ] Performance improved (describe improvement)
- [ ] Performance degraded (explain why this is acceptable)

## Documentation

<!-- Link to documentation updates -->
- [ ] README.md updated
- [ ] CONTRIBUTING.md updated
- [ ] Code comments updated
- [ ] New documentation files added

## Additional Notes

<!-- Any additional information or context -->
...

---

**Thank you for contributing to ChronoSub! 🎉**
