开放传输层列表给业务使用 + 优化一些小问题

[walterlv]

No description provided.

[Copilot]

Pull request overview

This PR makes several improvements to the DotNetCampus.ModelContextProtocol library:

1. Exposes the registered transport layer list to consumer code through a new McpServer.Transports property (backed by a List<IServerTransport> instead of HashSet<IServerTransport>).
2. Centralizes common NuGet package build settings (AOT compatibility, symbols, SourceLink, etc.) into a shared build/Package.props file, promoting reuse across multiple projects.
3. Optimizes AI-model-facing descriptions by switching from inline (Values: ...) format to a newline-separated format for enum values and polymorphic type hints.

Changes:

• Expose transport list via McpServer.Transports and switch backing store from HashSet to List with manual dedup
• Extract common package build properties into build/Package.props; update Ipc and TouchSocket.Http projects to import it and target multiple frameworks

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
ServerTransportManager.cs	_transports changed from HashSet to List with explicit duplicate check; new Transports property exposed
McpServer.cs	New public Transports property delegating to ServerTransportManager.Transports
build/Package.props	New shared file centralizing NuGet packaging properties and SourceLink reference
Directory.Build.props	Removes per-project Description (now set per-project in each .csproj)
DotNetCampus.ModelContextProtocol.csproj	Imports Package.props; removes properties now in shared file
DotNetCampus.ModelContextProtocol.TouchSocket.Http.csproj	Imports Package.props; expands to multi-framework; adds Compatibility.cs link
DotNetCampus.ModelContextProtocol.Ipc.csproj	Imports Package.props; removes IsPackable=false; adds missing package references
McpServerToolSourceBuilder.cs	Switches to ToNullableDisabledGlobalDisplayString() for AOT-safe generic type arguments
JsonPropertySchemaInfo.cs	Changes enum/polymorphic hint format from inline (Values: ...) to newline-separated
DotNetCampus.ModelContextProtocol.sln	Adds build/Package.props to solution view

[Copilot]

Pull request overview

Copilot reviewed 10 out of 10 changed files in this pull request and generated no new comments.