feat: Update main entry point and improve build script for cleaner architecture

main.ts

@@ -2,6 +2,7 @@
 
 import fs from 'fs-extra';
 import mustache from 'mustache';
+import path from 'path';
 import { program } from 'commander';
 
 import { log, logSuccess, logInfo, logWarning, logError, colors } from './src/utils/logger';
@@ -26,7 +27,11 @@ program
   .version('1.0.0')
   .option('-i, --input <file>', 'Archivo OpenAPI/Swagger (yaml o json)', 'swagger.yaml')
   .option('-o, --output <dir>', 'Directorio de salida', './src/app')
-  .option('-t, --templates <dir>', 'Directorio de templates personalizados', './templates')
+  .option(
+    '-t, --templates <dir>',
+    'Directorio de templates personalizados',
+    path.join(__dirname, 'templates')
+  )
   .option('--skip-install', 'No instalar dependencias')
   .option('--dry-run', 'Simular sin generar archivos')
   .parse(process.argv);