feat(AuthCallbackHandler): Add a OAuthCallback Handler instance that can be used already build in

[DevTKSS]

TODO: Check if there is any non Uno.UI specific replacement for the WebAuthenticationResult with similar/same end result, to fix the type not found lintings?

Made the Handler specific Methods that use magic numbers (status, messages...) virtual so someone who would like to have other behaviour could simply override them and implement it with littlest effort

Added ErrorResponse Default uri key names of the official standard document and implemented in the OAuthCallbackHandler

[DevTKSS]

Updated to seperate Project and latest Registration Changes implemented for AuthCallbackHandler
TODO:

• check if the Named Options/Keyed Service registration is correct like this, as its currently known as dotnet limitation: IConfigBuilder.Section doesn't work with configurationSection param, works with configSection unoplatform/uno.extensions#2330 (comment) the Consumer might have multiple Registrations of this Handler Option type and the current approach would require him to fallback to the only alternative of Registring them manually 🤔

[Copilot]

Pull Request Overview

This PR adds OAuth callback handler functionality to the Yllibed HTTP server library by creating a new Yllibed.Handlers.Uno project. The implementation provides a built-in handler for OAuth authentication callbacks that integrates with Uno.UI's WebAuthenticationResult.

Key changes:

• Creates a new OAuthCallbackHandler class that implements OAuth callback processing
• Adds dependency injection extensions for easy service registration
• Implements OAuth error response handling according to RFC 6749 standards

Reviewed Changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
global.json	Updates SDK configuration to include Uno.Sdk 6.2.29
Yllibed.Handlers.Uno/OAuthCallbackHandler.cs	Main OAuth callback handler implementation with status code mapping and result processing
Yllibed.Handlers.Uno/IAuthCallbackHandler.cs	Interface definition for authentication callback handlers
Yllibed.Handlers.Uno/Extensions/OAuthCallbackExtensions.cs	Dependency injection extensions for registering OAuth callback handlers
Yllibed.Handlers.Uno/Extensions/UriExtensions.cs	URI parameter parsing utilities for OAuth callback processing
Yllibed.Handlers.Uno/Defaults/OAuthErrorResponseDefaults.cs	OAuth error response constants based on RFC 6749
Yllibed.Handlers.Uno/AuthCallbackHandlerOptions.cs	Configuration options for the auth callback handler
Yllibed.Handlers.Uno/Yllibed.Handlers.Uno.csproj	Project file for the new Uno handlers library

Comments suppressed due to low confidence (1)

Yllibed.Handlers.Uno/OAuthCallbackHandler.cs:1

• This large commented-out code block should be removed rather than left as dead code. If this implementation might be needed later, consider documenting the decision in a comment or tracking it in an issue.

using Microsoft.Extensions.DependencyInjection;

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[DevTKSS]

Aligned with GuardExtensions, removed Keyed usage. While this could be a good addition, in case the user has multiple handlers needed and wants to use named options, it's more complicated since GetRequiredService<OAuthCallbackHandler> can not be used then, instead we would need to use GetRequiredKeyedService<OAuthCallbackHandler>, so no intermixing allowed from DI in this

[DevTKSS]

Note

• Commented the InlineData Test line until [Server][TctListener] Socket Exception when using multiple calls #15 gots fixed
• Added Remark about this limitation to the now also added Usage sample in Readme