fix: fix type generator for tuples

src/csv-loader/loader.ts

@@ -493,7 +493,7 @@ class ReferenceValueParser {
 /**
  * Convert a schema to TypeScript type string
  */
-function schemaToTypeString(schema: Schema, resourceNames?: Map<string, string>): string {
+export function schemaToTypeString(schema: Schema, resourceNames?: Map<string, string>): string {
   switch (schema.type) {
     case 'string':
       return 'string';
@@ -519,7 +519,7 @@ function schemaToTypeString(schema: Schema, resourceNames?: Map<string, string>)
           const typeStr = schemaToTypeString(el.schema, resourceNames);
           return el.name ? `${el.name}: ${typeStr}` : typeStr;
         });
-        return `[${tupleElements.join(', ')}]`;
+        return `[${tupleElements.join(', ')}][]`;
       }
       // Wrap union types in parentheses to maintain correct precedence
       const elementType = schemaToTypeString(schema.element, resourceNames);