- Added McpHealthDiagnosticsService to manage health checks for MCP servers.
- Implemented IPC channels for diagnosing MCP server health, including new MCP_REGISTRY_DIAGNOSE channel.
- Enhanced UI components to display diagnostic status and results for installed MCP servers.
- Updated state management to track MCP diagnostics loading state and errors.
- Improved overall user experience with real-time feedback on MCP server connectivity and health status.
