Add manual TLS connection check

[mortenn]

Summary

• Adds a user-triggered HTTPS connection check dialog with confirmation, cancellation, TLS certificate details, cipher strength, CAA alignment, and certificate transparency guidance.
• Adds security settings for certificate record checks, hiding the manual scan action, and skipping the confirmation prompt, including profile and settings persistence updates.
• Replaces the main picker text action with a padlock indicator that reflects scan results without using traffic-light colors for DNS resolution failures.

Test plan

• dotnet test tests/BrowserPicker.Common.Tests/BrowserPicker.Common.Tests.csproj

Fixes #248

Made with Cursor

[github-actions]

PR Validation

Check	Result
CSharpier	success
XamlStyler	success
dotnet test	success

CSharpier

Output

Checked 65 files in 958ms.

XamlStyler

Output

Checking: src\BrowserPicker.UI\App.xaml
  PASS
Checking: src\BrowserPicker.UI\Resources\ResourceDictionary.xaml
  PASS
Checking: src\BrowserPicker.UI\Views\BrowserEditor.xaml
  PASS
Checking: src\BrowserPicker.UI\Views\BrowserList.xaml
  PASS
Checking: src\BrowserPicker.UI\Views\Configuration.xaml
  PASS
Checking: src\BrowserPicker.UI\Views\ConnectionCheckWindow.xaml
  PASS
Checking: src\BrowserPicker.UI\Views\ExceptionReport.xaml
  PASS
Checking: src\BrowserPicker.UI\Views\LoadingWindow.xaml
  PASS
Checking: src\BrowserPicker.UI\Views\MainWindow.xaml
  PASS
Checking: src\BrowserPicker.UI\Views\UrlEditor.xaml
  PASS

10 of 10 files pass format check.

dotnet test

Output

  Determining projects to restore...
  Restored D:\a\BrowserPicker\BrowserPicker\dist\Dependent\Dependent.wixproj (in 1.65 sec).
  Restored D:\a\BrowserPicker\BrowserPicker\dist\Portable\Portable.wixproj (in 1.7 sec).
  Restored D:\a\BrowserPicker\BrowserPicker\tests\BrowserPicker.Common.Tests\BrowserPicker.Common.Tests.csproj (in 12.39 sec).
  Restored D:\a\BrowserPicker\BrowserPicker\src\BrowserPicker.Windows\BrowserPicker.Windows.csproj (in 18.56 sec).
  Restored D:\a\BrowserPicker\BrowserPicker\src\BrowserPicker.Common\BrowserPicker.Common.csproj (in 6.17 sec).
  Restored D:\a\BrowserPicker\BrowserPicker\tools\BrowserPicker.SchemaGen\BrowserPicker.SchemaGen.csproj (in 20.22 sec).
  Restored D:\a\BrowserPicker\BrowserPicker\src\BrowserPicker.UI\BrowserPicker.UI.csproj (in 20.31 sec).
  BrowserPicker.Common -> D:\a\BrowserPicker\BrowserPicker\src\BrowserPicker.Common\bin\Debug\net10.0-windows\BrowserPicker.Common.dll
  BrowserPicker.Common.Tests -> D:\a\BrowserPicker\BrowserPicker\tests\BrowserPicker.Common.Tests\bin\x64\Debug\net10.0-windows\BrowserPicker.Common.Tests.dll
Test run for D:\a\BrowserPicker\BrowserPicker\tests\BrowserPicker.Common.Tests\bin\x64\Debug\net10.0-windows\BrowserPicker.Common.Tests.dll (.NETCoreApp,Version=v10.0)
A total of 1 test files matched the specified pattern.
Results File: D:\a\BrowserPicker\BrowserPicker\test-results\dotnet-test.trx

Passed!  - Failed:     0, Passed:    21, Skipped:     0, Total:    21, Duration: 730 ms - BrowserPicker.Common.Tests.dll (net10.0)

Run: PR Validation #26