Background recording functionality

[EthanRakutoBell]

Enable recording in the background

♻️ Current situation & Problem

Need to ensure that application records and classifies audio in the background, even while the phone screen is off or while the application is closed.

⚙️ Release Notes

Add a bullet point list summary of the feature and possible migration guides if this is a breaking change so this section can be added to the release notes.
Include code snippets that provide examples of the feature implemented or links to the documentation if it appends or changes the public interface.

📚 Documentation

Please ensure that you properly document any additions in conformance to Spezi Documentation Guide.
You can use this section to describe your solution, but we encourage contributors to document your reasoning and changes using in-line documentation.

✅ Testing

Please ensure that the PR meets the testing requirements set by CodeCov and that new functionality is appropriately tested.
This section describes important information about the tests and why some elements might not be testable.

📝 Code of Conduct & Contributing Guidelines

By submitting creating this pull request, you agree to follow our Code of Conduct and Contributing Guidelines:

• I agree to follow the Code of Conduct and Contributing Guidelines.

[codecov]

Codecov Report

Attention: Patch coverage is 22.91667% with 37 lines in your changes missing coverage. Please review.

Project coverage is 57.65%. Comparing base (f47917c) to head (aee162f).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...oughSync/CoughDetection/CoughAnalysisManager.swift	5.27%	18 Missing ⚠️
CoughSync/CoughDetection/CoughClass.swift	25.00%	15 Missing ⚠️
...hSync/CoughDetection/CoughDetectionViewModel.swift	71.43%	2 Missing ⚠️
CoughSync/CoughView/CoughModelView.swift	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #34      +/-   ##
==========================================
- Coverage   58.87%   57.65%   -1.21%     
==========================================
  Files          32       33       +1     
  Lines        1213     1256      +43     
==========================================
+ Hits          714      724      +10     
- Misses        499      532      +33     

Files with missing lines	Coverage Δ
...hSync/CoughDetection/CoughDetectionViewModel.swift	15.39% <71.43%> (+6.88%)	⬆️
CoughSync/CoughView/CoughModelView.swift	0.00% <0.00%> (ø)
CoughSync/CoughDetection/CoughClass.swift	25.00% <25.00%> (ø)
...oughSync/CoughDetection/CoughAnalysisManager.swift	4.73% <5.27%> (+0.22%)	⬆️

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update f47917c...aee162f. Read the comment docs.

[MiguelAFH]

Changes look fine overall. Can you document how you tested this works for extended sessions?