Turn operational processes, code paths, state machines, data flows, and org/dependency structures into clean Mermaid.js diagram code. Use when the user asks to diagram, chart, map, or visualize a process or architecture — "draw this flow", "make a flowchart", "diagram the pipeline", "show me how this works as a graph", "mermaid" — or when a multi-branch process explanation would be clearer as a picture than as prose.