feat: Import the ModelContextProtocol core feature classes

[Xb2555]

• I have read the CONTRIBUTING.md guidelines.
• I have registered the PR changes.

Ⅰ. Describe what this PR did

Import the core classes related to ModelContextProtocol to prepare for the subsequent implementation of MCPTool functionality.

Ⅱ. Does this pull request fix one issue?

Ⅲ. Why don't you add test cases (unit test/integration test)?

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[codecov]

Codecov Report

❌ Patch coverage is 72.08803% with 520 lines in your changes missing coverage. Please review.
✅ Project coverage is 70.96%. Comparing base (30de170) to head (b453165).

Files with missing lines	Patch %	Lines
...eCore/channel/WebMvcStreamableChannelProvider.java	44.58%	125 Missing and 3 partials ⚠️
.../core/protocol/StreamableServerRuntimeSession.java	17.26%	115 Missing ⚠️
...he/seata/mcp/core/protocol/ProtocolDefinition.java	79.17%	93 Missing and 3 partials ⚠️
.../runtimeCore/channel/WebMvcSseChannelProvider.java	53.92%	45 Missing and 2 partials ⚠️
...pache/seata/mcp/core/register/MCPAutoRegister.java	76.16%	27 Missing and 14 partials ⚠️
...seata/mcp/core/runtimeCore/AsyncRuntimeEngine.java	75.91%	21 Missing and 12 partials ⚠️
...ata/mcp/core/runtimeCore/RuntimeCoreInterface.java	61.53%	19 Missing and 1 partial ⚠️
.../seata/mcp/core/protocol/ServerRuntimeSession.java	91.48%	7 Missing and 1 partial ⚠️
...mcp/core/protocol/StandardJsonSchemaValidator.java	79.41%	4 Missing and 3 partials ⚠️
...rg/apache/seata/mcp/entity/pojo/MCPProperties.java	95.40%	4 Missing ⚠️
... and 9 more

Additional details and impacted files

@@             Coverage Diff              @@
##                2.x    #7786      +/-   ##
============================================
+ Coverage     70.92%   70.96%   +0.04%     
+ Complexity      994      956      -38     
============================================
  Files          1322     1349      +27     
  Lines         50175    52033    +1858     
  Branches       5932     6063     +131     
============================================
+ Hits          35587    36927    +1340     
- Misses        11660    12131     +471     
- Partials       2928     2975      +47     

Files with missing lines	Coverage Δ
...a/org/apache/seata/mcp/config/MCPServerConfig.java	100.00% <100.00%> (ø)
...pache/seata/mcp/core/manager/MCPServerManager.java	100.00% <100.00%> (ø)
...eata/mcp/core/protocol/ProtocolErrorException.java	100.00% <100.00%> (ø)
...pache/seata/mcp/core/protocol/SchemaValidator.java	100.00% <100.00%> (ø)
...ore/protocol/StandardStreamableSessionFactory.java	100.00% <100.00%> (ø)
...ta/mcp/core/runtimeCore/DefaultRuntimeContext.java	100.00% <100.00%> (ø)
...che/seata/mcp/core/runtimeCore/RuntimeContext.java	100.00% <100.00%> (ø)
...a/mcp/core/runtimeCore/RuntimeContextResolver.java	100.00% <100.00%> (ø)
...a/mcp/core/runtimeCore/RuntimeExchangeContext.java	100.00% <100.00%> (ø)
...apache/seata/console/config/WebSecurityConfig.java	97.14% <92.30%> (+4.55%)	⬆️
... and 18 more

... and 8 files with indirect coverage changes

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[Copilot]

Pull request overview

This PR imports core Model Context Protocol (MCP) classes to prepare for subsequent MCPTool functionality implementation in the Seata console module. The changes introduce a comprehensive MCP server infrastructure including protocol definitions, transport providers, runtime engines, session management, and auto-registration capabilities.

Key Changes

• Protocol Infrastructure: Adds complete MCP protocol definitions including JSON-RPC message types, server/client capabilities, and tool specifications
• Transport Layer: Implements SSE and Streamable transport providers with WebMVC integration for handling MCP communication
• Runtime Engine: Introduces AsyncRuntimeEngine for managing tool registration, request/notification handling, and schema validation
• Session Management: Provides session factories and runtime sessions supporting both SSE and Streamable protocols with health monitoring

Reviewed changes

Copilot reviewed 51 out of 51 changed files in this pull request and generated 15 comments.

Show a summary per file

File	Description
MCPProperties.java	Configuration properties class for MCP server settings supporting SSE and Streamable types
KeepAliveScheduler.java	Utility for scheduling keep-alive pings to maintain session health
WebMvcStreamableChannelProvider.java	Streamable transport provider with SSE support for bidirectional MCP communication
WebMvcSseChannelProvider.java	SSE-specific channel provider for unidirectional server-to-client messaging
RuntimeExchangeContext.java	Context object for MCP request/notification exchanges
RuntimeCoreInterface.java	Builder interface for constructing async runtime engines
RuntimeCapabilities.java	Capability definitions for tools, completions, and server features
AsyncRuntimeEngine.java	Core engine managing tool registry, request handling, and protocol negotiation
MCPAutoRegister.java	Spring BeanPostProcessor for auto-registering @tool annotated methods
StreamableServerRuntimeSession.java	Session implementation supporting streamable protocol with response streaming
StandardStreamableSessionFactory.java	Factory for creating streamable sessions with initialization
StandardJsonSchemaValidator.java	JSON schema validator using networknt schema library
ServerRuntimeSession.java	Base server session handling initialization and message routing
MCPServerManager.java	Lifecycle manager for MCP server with pause/resume capabilities
RuntimeUtils.java	Common utility methods for validation and text operations
Tool.java & ToolParam.java	Annotations for marking MCP tool methods and parameters
MCPServerConfig.java	Spring configuration for MCP server beans

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