Generates Mermaid flowchart diagrams for policy visualization.

Mermaid diagrams can be rendered in:

• GitHub markdown
• GitLab markdown
• Documentation tools
• Online editors (mermaid.live)

Example Output

flowchart TD
  Document[Document]
  Document --> read
  Document --> create
  Document --> update
  Document --> destroy

  read --> all
  read --> draft
  read --> approved
  update --> draft
  update --> pending_review