Add Ivy.Analyser NuGet package to all package demo projects

[nielsbosma]

Problem

All 52 package demo projects in packages-demos/ use PackageReference Include="Ivy" but don't include the Ivy.Analyser NuGet package. Since these are user-facing examples, they should demonstrate best practices including analyzer usage.

Solution

Add the Ivy.Analyser NuGet package reference to each .csproj file under packages-demos/, matching the pattern used in Ivy-Templates:

<PackageReference Include="Ivy.Analyser" Version="1.*">
  <PrivateAssets>all</PrivateAssets>
  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>

This should be added to the existing <ItemGroup> containing the Ivy PackageReference in each project.

Projects to update (52)

All .csproj files under packages-demos/:
asposebarcode, aspose-ocr, aspose-words, barcodelib, bogus, closedxml, constructs, cronos, csvhelper, diffengine, diffplex, dnsclient, enums-net, epplus, exceldatareader, fastmember, fluentdatetime, fuzzysharp, github, handlebars-net, HtmlAgilityPack, humanizer, ibannet, jwt, magick-net-q16-anycpu, mapster, microsoft-semantickernel, mimemapping, miniexcel, naudio, newtonsoft-json, nodatime, ollamasharp, openai, puppeteersharp, qrcoder, questpdf, restsharp, scriban, serialize-linq, sharpyaml, shopifysharp, simmetrics-net, smartformat-net, stripe-net, superpower, timezonenames, ulid, unitsnet, xlparser, yamldotnet, zstring

Suggested approach

A script can add the reference to all projects at once:

Get-ChildItem -Path "packages-demos" -Recurse -Filter "*.csproj" | ForEach-Object {
    $content = Get-Content $_.FullName -Raw
    if ($content -notmatch 'Ivy\.Analyser') {
        $content = $content -replace '(<PackageReference Include="Ivy" Version="[^"]*"\s*/>)', @'
$1
    <PackageReference Include="Ivy.Analyser" Version="1.*">
      <PrivateAssets>all</PrivateAssets>
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
    </PackageReference>
'@
        Set-Content $_.FullName $content
    }
}

Verification

Build a few representative projects after adding:

dotnet build packages-demos/bogus/BogusExample.csproj
dotnet build packages-demos/openai/OpenAIExample.csproj
dotnet build packages-demos/humanizer/HumanizerExample.csproj

Then fix any analyzer warnings/errors that surface.