.csproj.tmp missing from template

Even though Program.cs has logic to copy the .csproj file, it is missing from the template folder

```C#
if (destinationPath.EndsWith(".csproj.tmp"))
{
destinationPath = destinationPath.Substring(0, destinationPath.Length - 4);
}
```

Start by inspecting the copy logic in Program.cs and the template folder contents, focusing on the expected .csproj.tmp file. Confirm the template includes the file required by the generator and verify that the generated project has the intended .csproj name.

Written by the indexing model from the issue text.