feat: add multi-step flow to n8n_generate_workflow tool (v2.44.0)

Enable AI agents to act as quality gates for workflow generation:
proposals → review → deploy. New parameters: deploy_id, confirm_deploy.
New types: GenerateWorkflowProposal, status field on result.

Conceived by Romuald Członkowski - https://www.aiadvisors.pl/en

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

src/index.ts

@@ -24,6 +24,7 @@ export type {
 export type {
   GenerateWorkflowArgs,
   GenerateWorkflowResult,
+  GenerateWorkflowProposal,
   GenerateWorkflowHandler,
   GenerateWorkflowHelpers
 } from './types/generate-workflow';