// Package interfaces defines the core interfaces and shared structures for the CLI Proxy API server.// These interfaces provide a common contract for different components of the application,// such as AI service clients, API handlers, and data models.package interfaces import "net/http" // ErrorMessage encapsulates an error with an associated HTTP status code.// This structure is used to provide detailed error information including// both the HTTP status and the underlying error.type ErrorMessage struct {	// StatusCode is the HTTP status code returned by the API.	StatusCode int 	// Error is the underlying error that occurred.	Error error 	// Addon contains additional headers to be added to the response.	Addon http.Header}