v1.5.5

🚀 MCP Session Architecture Implementation

✨ New Features

• Enhanced ClientInfo struct with Env and Roots fields for comprehensive session data
• ClientSession convenience methods: Env(), Roots(), Capabilities() for easy access
• Transport-aware session data extraction - environment from transport headers/process, not init params
• Automated workspace root fetching following complete MCP protocol flow
• Proper response handling with request tracking for roots/list requests

🔧 Implementation Details

• Server automatically detects client roots capability and sends roots/list requests
• Workspace roots extracted from both clientInfo during initialization AND via automated roots/list
• Environment data correctly sourced from transport layer per MCP specification
• Full MCP compliance across all three protocol versions (2024-11-05, 2025-03-26, draft)

🧪 Testing & Quality

• Added comprehensive MCP compliance tests for all three protocol specifications
• Added session integration tests with complete flow verification
• Enhanced workspace roots testing with URI-to-path conversion validation
• All 500+ tests passing across all packages and protocol versions

📚 Documentation

• Added MCP_Session_Architecture.md with detailed implementation notes
• Documented key discovery: roots are client capability given to server for file access awareness

✅ Compliance & Standards

• Maintains pure API contract - exactly one method per operation
• Follows Go development rules: minimal locks, test-first approach, idiomatic patterns
• Zero breaking changes - seamless integration with existing functionality

This release provides production-ready session management and automated root fetching while maintaining full backward compatibility.