fix(rid): Fix Remote ID indicator QML state handling

[msli-dev]

Description

Addresses items 1-13 from #14220 for the Remote ID toolbar indicator and expanded indicator page.

This PR fixes QML runtime issues and cleanup findings, including:

• Guarding remoteIDManager access when there is no active vehicle
• Making remoteIDState update reactively when Remote ID flags or settings change
• Fixing undefined remoteIDManager access in the expanded indicator page
• Using RemoteIDSettings enum values instead of duplicated local enums
• Fixing the basicIDFlagIge typo
• Removing unreachable break statements after return
• Replacing emergency button source-string comparisons with boolean highlight state
• Updating the Connections handler to Qt6 function syntax

Item 14 from #14220 is intentionally left out because moving region-change side effects from QML into C++ is a broader behavior change and should be handled separately.

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Refactoring (no functional changes)
• CI/Build changes
• Other

Testing

• Tested locally
• Added/updated unit tests
• Tested with simulator (SITL)
• Tested with hardware

Platforms Tested

• Linux
• Windows
• macOS
• Android
• iOS

Flight Stacks Tested

• PX4
• ArduPilot

Screenshots

Not applicable.

Checklist

• I have read the Contribution Guidelines
• I have read the Code of Conduct
• My code follows the project's coding standards
• I have added tests that prove my fix/feature works
• New and existing unit tests pass locally

Related Issues

Addresses items 1-13 of #14220

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By submitting this pull request, I confirm that my contribution is made under the terms of the project's dual license (Apache 2.0 and GPL v3).

[github-actions]

Thanks for your first pull request! 🎉

A maintainer will review this soon. Please ensure:

• CI checks pass
• Code follows coding standards
• Changes tested on relevant platforms

We appreciate your contribution to QGroundControl!

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 26.46%. Comparing base (f29efd3) to head (2e737fb).
⚠️ Report is 32 commits behind head on master.

❌ Your project check has failed because the head coverage (26.46%) is below the target coverage (30.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #14434      +/-   ##
==========================================
+ Coverage   25.47%   26.46%   +0.99%     
==========================================
  Files         769      767       -2     
  Lines       65912    66285     +373     
  Branches    30495    30667     +172     
==========================================
+ Hits        16788    17542     +754     
+ Misses      37285    36286     -999     
- Partials    11839    12457     +618     

Flag	Coverage Δ
unittests	26.46% <ø> (+0.99%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.
see 132 files with indirect coverage changes

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[github-actions]

Build Results

Platform Status

Platform	Status	Details
Linux	Passed	View
Windows	Passed	View
MacOS	Passed	View
Android	Passed	View

All builds passed.

Pre-commit

Check	Status	Details
pre-commit	Failed (non-blocking)	View

Pre-commit hooks: 2 passed, 42 failed, 7 skipped.

Test Results

linux-coverage: 88 passed, 0 skipped
Total: 88 passed, 0 skipped

Code Coverage

Coverage	Baseline	Change
60.4%	60.4%	+0.0%

Artifact Sizes

Artifact	Size	Δ from master
QGroundControl	216.77 MB	-4.61 MB (decrease)
QGroundControl-aarch64	176.67 MB	+0.00 MB (increase)
QGroundControl-installer-AMD64	134.67 MB	-0.02 MB (decrease)
QGroundControl-installer-AMD64-ARM64	77.50 MB	+0.01 MB (increase)
QGroundControl-installer-ARM64	106.01 MB	-0.02 MB (decrease)
QGroundControl-linux	186.86 MB	-147.82 MB (decrease)
QGroundControl-mac	186.86 MB	No change
QGroundControl-windows	186.87 MB	No change
QGroundControl-x86_64	172.32 MB	+0.01 MB (increase)
Total size decreased by 152.45 MB

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_{Updated: 2026-05-24 20:38:54 UTC • Triggered by: Linux}