[codex] Add self-contained Windows release builds

[IPFR33LY]

Summary

• publish EVEMon and EVEMon.Watchdog as self-contained win-x64 single-file executables
• update CircleCI release packaging to use dotnet publish output before building installer and zip artifacts
• make InstallBuilder package an explicit source directory and pass NSIS arguments safely for paths with spaces
• remove the obsolete .NET Framework installer runtime check
• update restart helper path resolution so it works from single-file publish output

Closes #112.
Helps #92.

Changelog

• Windows release artifacts now include self-contained executables, so users do not need to install matching .NET Desktop or ASP.NET runtime packages.
• Installer and binaries zip are built from the published self-contained output.
• Restart/watchdog behavior is preserved for single-file builds.

Validation

• dotnet restore EVEMon.sln --runtime win-x64 --source https://api.nuget.org/v3/index.json
• dotnet build EVEMon.sln --configuration Release --no-restore -p:BclBuildImported=Ignore
• dotnet publish src\EVEMon\EVEMon.csproj --configuration Release --runtime win-x64 --self-contained true --output src\EVEMon\bin\Publish\win-x64 -p:BclBuildImported=Ignore --source https://api.nuget.org/v3/index.json
• EVEMonInstallBuilder.exe -source=<publish dir> produced EVEMon-install-5.0.0.exe and EVEMon-binaries-5.0.0.zip
• verified zip includes both EVEMon/EVEMon.exe and EVEMon/EVEMon.Watchdog.exe
• dotnet test tests\Tests.EVEMon\Tests.EVEMon.csproj --configuration Release --no-restore --logger "console;verbosity=minimal" -p:BclBuildImported=Ignore

Notes

Tests.EVEMon.Common still has the existing async-void failure in SSOWebServerHttpListener (HandleCallback, Dispose, Start, Stop). This appears unrelated to the packaging change and was already observed during the previous localization work.

[IPFR33LY]

@mgoeppner