fix(macos): #3433 cursor reappears correctly after typing

[martona]

Description

Move macOS display capture to ScreenCaptureKit when available, with AVFoundation kept as fallback.

This is a backport of macOS capture work from Lumen, which appears to be an abandoned fork of Sunshine. The old AVFoundation capture path is still present and used if ScreenCaptureKit is unavailable or fails to initialize.

The main benefit is more reliable cursor capture. With the current AVFoundation path, some macOS apps can hide the pointer while typing and Sunshine does not see it reappear until the pointer returns to the Dock. This seems to be an Apple bug in AVFoundation, with ScreenCaptureKit being the most efficient fix.

Other benefits include improving handling for virtual or newly-created displays by refreshing ScreenCaptureKit shareable content when the selected display is not immediately available.

Tested manually on macOS with Moonlight/Sunshine streaming. This fixes the cursor-hidden-until-leaving-window behavior I was seeing with apps that hide the pointer during text input, which is pretty much everything from Terminal to XCode.

Issues Fixed or Closed

Resolves #3433.

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

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