feat: add script_body and parameters_schema to SaveToLibraryRequest type

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/types/script-builder.ts

@@ -1,3 +1,5 @@
+import type { ScriptParameter } from './scripts'
+
 export interface ScriptBuilderSessionSummary {
   id: string
   language: string
@@ -47,4 +49,6 @@ export interface SaveToLibraryRequest {
   description?: string
   category_id?: string
   share_with_team?: boolean
+  script_body?: string
+  parameters_schema?: { parameters: ScriptParameter[] }
 }