Feature: LangGraph Visualization
  As a developer using CleverAgents
  I want to visualize LangGraph workflows
  So that I can understand and debug my graph structures

  Background:
    Given the CleverAgents reactive system is available with LangGraph support

  Scenario: LangGraph visualization
    Given I have a complex LangGraph configured
    When I request visualization in mermaid format
    Then I should get a mermaid diagram showing all nodes with appropriate shapes
    And the diagram should show all edges with conditions if present
    And the diagram should show subgraph boundaries if applicable