Add Microsoft.EntityFrameworkCore.Design package to Boilerplate to prevent fallback to 8.x version on EF Core 10 projects

[yasmoradi]

Problem

Microsoft.EntityFrameworkCore.Design is not explicitly referenced in the Boilerplate project files. When running EF Core CLI commands (e.g., dotnet ef migrations add), NuGet may fall back to resolving an older 8.x.x version of the Design package instead of the 10.x.x version being used by the rest of the project. This can cause compatibility issues in an EF Core 10-powered project.

Solution

Explicitly add Microsoft.EntityFrameworkCore.Design (with PrivateAssets="all" so it doesn't leak as a transitive dependency) to:

1. Directory.Packages.props — add <PackageVersion Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.x" /> to pin the version centrally.
2. Boilerplate.Server.Api.csproj — add <PackageReference Include="Microsoft.EntityFrameworkCore.Design" PrivateAssets="all" />.
3. Boilerplate.Server.Web.csproj — add <PackageReference Condition=" '$(offlineDb)' == 'true' OR '$(offlineDb)' == ''" Include="Microsoft.EntityFrameworkCore.Design" PrivateAssets="all" /> (conditional, same as Tools).

Files to change

• src/Templates/Boilerplate/Bit.Boilerplate/src/Directory.Packages.props
• src/Templates/Boilerplate/Bit.Boilerplate/src/Server/Boilerplate.Server.Api/Boilerplate.Server.Api.csproj
• src/Templates/Boilerplate/Bit.Boilerplate/src/Server/Boilerplate.Server.Web/Boilerplate.Server.Web.csproj