fix mcp streamable

[Aias00]

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[Copilot]

Pull request overview

This PR fixes MCP (Model Context Protocol) streamable functionality by upgrading the MCP SDK from version 0.10.0 to 0.17.0 and adapting the codebase to API changes introduced in the new version. The changes replace direct usage of Jackson's ObjectMapper with the MCP SDK's McpJsonMapper abstraction and update CORS headers to support the Mcp-Protocol-Version header.

Changes:

• Upgraded MCP SDK from 0.10.0 to 0.17.0 and Spring AI from 1.0.0 to 1.1.2
• Replaced Jackson TypeReference with MCP SDK's TypeRef throughout transport implementations
• Added support for multiple MCP protocol versions (2025-03-26 and 2025-11-25)
• Enhanced CORS headers to include Mcp-Protocol-Version for proper protocol negotiation
• Improved streamable HTTP transport initialization with lazy creation fallback

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
pom.xml	Updated MCP SDK version to 0.17.0 and Spring AI to 1.1.2
shenyu-plugin/shenyu-plugin-mcp-server/pom.xml	Added mcp-json-jackson2 dependency for JSON serialization support
shenyu-spring-boot-starter/.../pom.xml	Added mcp-json-jackson2 dependency to starter module
ShenyuStreamableHttpServerTransportProvider.java	Migrated to McpJsonMapper, added multi-version protocol support, updated CORS headers
ShenyuSseServerTransportProvider.java	Migrated to McpJsonMapper for consistent JSON handling
McpServerPluginDataHandler.java	Added streamable HTTP transport initialization in selector handler
McpServerPlugin.java	Added lazy transport creation fallback and updated CORS headers

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