Fix v1.3.1 localization and installer cleanup

[PrimeBuild-pc]

Summary

Describe what changed and why.

Type of Change

• Bug fix
• Feature
• Refactor
• Documentation
• Security hardening
• Performance improvement

Validation

• Built Debug and Release successfully
• Ran automated tests
• Verified impacted UI flows
• Verified no secrets/credentials introduced

Security and Risk Notes

List any impact on elevation, process control, power plan operations, or persisted configuration.

Checklist

• Updated docs where relevant
• Added or updated tests where relevant
• Kept changes scoped and backwards compatible where possible

[codecov-commenter]

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Codecov Report

❌ Patch coverage is 26.23762% with 149 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
Services/SystemTrayService.cs	0.00%	73 Missing ⚠️
ViewModels/SettingsViewModel.cs	29.41%	35 Missing and 1 partial ⚠️
Services/NotificationService.cs	9.37%	26 Missing and 3 partials ⚠️
Services/SystemTrayStatusUpdater.cs	30.00%	6 Missing and 1 partial ⚠️
ViewModels/SelectedProcessSummaryViewModel.cs	88.23%	1 Missing and 3 partials ⚠️

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Preserve tray selection when relocalizing menu

When the display language changes while a process is selected, this no-argument UpdateContextMenu() call uses the method defaults (selectedProcessName = null, hasSelection = false), which resets the tray menu to “No process selected” and disables “Apply Pending Settings” even though ProcessViewModel only re-populates it on a later selection change. Store/reuse the current selection when refreshing localized text so changing languages does not silently disable the tray quick-apply path.

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