// Command validate_codex_models validates a Codex client model catalog file.package main import (	"flag"	"fmt"	"os"	"strings" 	"github.com/router-for-me/CLIProxyAPI/v7/internal/registry") func main() {	var inputPath string	flag.StringVar(&inputPath, "file", "", "Codex client model catalog JSON file")	flag.Parse() 	if strings.TrimSpace(inputPath) == "" {		fmt.Fprintln(os.Stderr, "error: --file is required")		os.Exit(2)	}	data, err := os.ReadFile(inputPath)	if err != nil {		fmt.Fprintf(os.Stderr, "error: read %s: %v\n", inputPath, err)		os.Exit(1)	}	if err = registry.ValidateCodexClientModelsJSON(data); err != nil {		fmt.Fprintf(os.Stderr, "error: invalid Codex client model catalog %s: %v\n", inputPath, err)		os.Exit(1)	}	fmt.Printf("Validated Codex client model catalog: %s\n", inputPath)}