// Re-export public API for consumers.
// Usage: import AirMCPServer

// Core types
// - MCPServer: Tool registration + JSON-RPC dispatch
// - MCPHTTPServer: Hummingbird HTTP transport
// - MCPTool: Protocol for implementing tools
// - MCPToolResult: Tool execution result (.ok / .err)
// - JSONRPCRequest / JSONRPCResponse: Wire types
