Function graphCommand

graphCommand(
patterns: readonly string[],
cliOptions: Readonly<GraphCliOptions>,
): Promise<void>
CLI command handler for graph operations.

Processes markdown files to generate interactive link graphs in various formats. Supports JSON data export, Mermaid diagrams, GraphViz DOT format, and interactive HTML visualizations.
Parameters
- patterns: readonly string[]
  File patterns to process
- cliOptions: Readonly<GraphCliOptions>
  CLI-specific options
Returns Promise<void>
Example
```
  # Generate Mermaid diagram for all markdown files
  markmv graph "**/*.md" --format mermaid --output graph.mmd

  # Create interactive HTML visualization
  markmv graph docs/ --format html --output visualization.html

  # Export JSON data for external processing
  markmv graph . --format json --include-external --output graph.json

  # Generate GraphViz DOT file
  markmv graph "**/*.md" --format dot --include-images --output graph.dot
```
- Defined in commands/graph.ts:256