Export and Import Maps as Mermaid Diagram-as-Code

NetBrain currently does not support exporting or importing maps in Mermaid Diagram-as-Code format. This enhancement proposes adding the ability to export a map's topology as Mermaid syntax, and to import a Mermaid diagram back into a map. Customers integrating network diagrams with large language models and other text-based tooling would benefit from a machine-readable diagram format that can be shared and version-controlled outside the platform.