Final ConfigLoader implementation with MCP integration plan

Complete ConfigLoader system ready for production:

Core Implementation:
- All ConfigLoaders require top-level keys for schema validation
- AgentConfigLoader, GraphConfigLoader, SwarmConfigLoader, ToolConfigLoader
- Comprehensive JSON Schema validation system
- IDE integration support (VSCode, IntelliJ, Vim)
- Robust error handling and caching mechanisms

MCP Integration Planning:
- Comprehensive FUTURE-MCP.md implementation plan
- MCPClient, MCPToolWrapper, MCPServerRegistry architecture
- Multiple transport support (stdio, SSE, WebSocket, HTTP)
- Seamless integration with existing tool loading patterns
- Production-ready security and reliability features

Schema Validation Ecosystem:
- Real-time validation and autocompletion in IDEs
- Type enforcement without restrictive constraints
- Advanced features: conditions, structured output, nested configs
- Extensible architecture for future enhancements

Ready for immediate production deployment with comprehensive documentation and future MCP integration roadmap.

Author: vawsgit