build(windows): sign windows executables

[ReenigneArcher]

Description

Adds code signing for Windows executable files and installers using Azure Artifact Signing.

Screenshot

Issues Fixed or Closed

Roadmap Issues

• Closes Sunshine: code sign exe roadmap#110

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

[codecov]

Bundle Report

Bundle size has no change ✅

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (master@4c7df2d). Learn more about missing BASE report.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #4829   +/-   ##
=========================================
  Coverage          ?   17.54%           
=========================================
  Files             ?      106           
  Lines             ?    21813           
  Branches          ?     9770           
=========================================
  Hits              ?     3828           
  Misses            ?    13243           
  Partials          ?     4742           

Flag	Coverage Δ
Archlinux	12.05% <ø> (?)
FreeBSD-14.3-amd64	13.86% <ø> (?)
Homebrew-ubuntu-22.04	14.36% <ø> (?)
Linux-AppImage	12.54% <ø> (?)
Windows-AMD64	14.49% <ø> (?)
Windows-ARM64	13.11% <ø> (?)
macOS-arm64	18.22% <ø> (?)
macOS-x86_64	16.72% <ø> (?)

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

[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