Migrate solution to slnx

[Dragemil]

No description provided.

[github-actions]

Summary

Tests 📝	Passed ✅	Failed ❌	Skipped ⏭️	Other ❓	Flaky 🍂	Duration ⏱️
69	69	0	0	0	0	17.2s

_{🎉 No failed tests in this run. | ⏭️ No skipped tests in this run.}

Github Test Reporter by CTRF 💚

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.09%. Comparing base (563d30f) to head (5d3b0f9).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #79   +/-   ##
=======================================
  Coverage   90.09%   90.09%           
=======================================
  Files          34       34           
  Lines         747      747           
  Branches       46       46           
=======================================
  Hits          673      673           
  Misses         71       71           
  Partials        3        3           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[Copilot]

Pull request overview

This PR migrates the solution file from the legacy .sln format to the modern XML-based .slnx format, while also updating some dependency versions.

• Replaces LeanCode.Pipe.sln with LeanCode.Pipe.slnx using the new Visual Studio solution format
• Updates Microsoft.AspNetCore.SignalR.Client from 10.0.0 to 10.0.1
• Updates csharpier tool from 1.2.1 to 1.2.3

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
publisher/LeanCode.Pipe.slnx	New XML-based solution file containing all 19 projects organized into logical folder structures
publisher/LeanCode.Pipe.sln	Removed legacy solution file (323 lines)
publisher/Directory.Packages.props	Bumped Microsoft.AspNetCore.SignalR.Client package version to 10.0.1
publisher/.config/dotnet-tools.json	Updated csharpier formatter tool to version 1.2.3

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

The Configurations section only defines platforms but is missing build type configurations. The old .sln file had both Debug and Release configurations for each platform. In the .slnx format, you should include BuildType elements to define Debug and Release configurations. Without these, the solution may not properly support different build configurations.

Suggested change

	<Platform Name="x86" />
	<Platform Name="x86" />
	<BuildType Name="Debug" />
	<BuildType Name="Release" />