fix(macOS): emplace_back constructor fix; display_device interface factory

[martona]

Description

The necessary changes for LizardByte/Sunshine#5338 to clear. Also includes the interface factory so display_device.cpp does not have to pull in platform-specific libdisplaydevice includes.

Screenshot

Issues Fixed or Closed

Roadmap Issues

Type of Change

• feat: New feature (non-breaking change which adds functionality)
• fix: Bug fix (non-breaking change which fixes an issue)
• docs: Documentation only changes
• style: Changes that do not affect the meaning of the code (white-space, formatting, missing semicolons, etc.)
• refactor: Code change that neither fixes a bug nor adds a feature
• perf: Code change that improves performance
• test: Adding missing tests or correcting existing tests
• build: Changes that affect the build system or external dependencies
• ci: Changes to CI configuration files and scripts
• chore: Other changes that don't modify src or test files
• revert: Reverts a previous commit
• BREAKING CHANGE: Introduces a breaking change (can be combined with any type above)

Checklist

• Code follows the style guidelines of this project
• Code has been self-reviewed
• Code has been commented, particularly in hard-to-understand areas
• Code docstring/documentation-blocks for new or existing methods/components have been added or updated
• Unit tests have been added or updated for any new or modified functionality

AI Usage

• None: No AI tools were used in creating this PR
• Light: AI provided minor assistance (formatting, simple suggestions)
• Moderate: AI helped with code generation or debugging specific parts
• Heavy: AI generated most or all of the code changes

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[martona]

Just to clarify the issue:

• emplace_back(device_id, display_name, friendly_name, edid, info): Sonar happy, older toolchain build broken.
• emplace_back(EnumeratedDevice{...}): Build works, Sonar flags S6011.
• push_back(EnumeratedDevice{...}): Build works, Sonar tells us to use emplace_back.

I went with push_back and NOSONAR; the only way out of this would be to add a constructor to EnumeratedDevice so the first format works everywhere. But that'd make EnumeratedDevice no longer an aggregate, and cascade into a lot of code change just to keep Sonar happy.

[codecov]

Codecov Report

❌ Patch coverage is 76.66667% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.15%. Comparing base (6561607) to head (8010521).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/macos/factory.cpp	55.55%	0 Missing and 4 partials ⚠️
src/windows/win_display_device_general.cpp	0.00%	0 Missing and 2 partials ⚠️
src/macos/mac_display_device_general.cpp	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #280      +/-   ##
==========================================
- Coverage   80.17%   80.15%   -0.02%     
==========================================
  Files          59       63       +4     
  Lines        3370     3397      +27     
  Branches     1534     1545      +11     
==========================================
+ Hits         2702     2723      +21     
- Misses        326      355      +29     
+ Partials      342      319      -23     

Flag	Coverage Δ
Linux	93.45% <100.00%> (+0.05%)	⬆️
Windows-AMD64	91.06% <84.61%> (-0.05%)	⬇️
Windows-ARM64	67.05% <60.00%> (+0.01%)	⬆️
macOS	57.81% <50.00%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/common/factory.cpp	100.00% <100.00%> (ø)
src/common/include/display_device/factory.h	100.00% <100.00%> (ø)
src/windows/factory.cpp	100.00% <100.00%> (ø)
src/macos/mac_display_device_general.cpp	55.10% <0.00%> (ø)
src/windows/win_display_device_general.cpp	96.72% <0.00%> (-3.28%)	⬇️
src/macos/factory.cpp	55.55% <55.55%> (ø)

... and 2 files with indirect coverage changes

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