Standardize Inner Section Representation Across Diagram Types

[mitchspano]

Description

Currently, the InnerNode interface in uml_generator.ts suggests a nested node structure, but in practice, Graphviz and Mermaid diagrams render these as <hr/> delimited sections within the main node. PlantUML's implementation differs from this pattern, leading to inconsistent visualization across diagram tools.

Current Implementation

export interface InnerNode {
  id: string;
  type: string;  // Used as bold text header
  label: string; // Used as underlined text
  content: string[]; // Used as regular text content
}

Proposed Changes

1. Rename InnerNode to NodeSection to better reflect its actual usage
2. Refactor the interface to clearly indicate text styling:

export interface NodeSection {
  id: string;
  boldText?: string;      // Currently 'type'
  underlinedText?: string; // Currently 'label'
  contentLines: string[];  // Currently 'content'
}

3. Update PlantUML renderer to match Graphviz/Mermaid section-based rendering

Affected Files

• src/main/uml_generator.ts
• src/main/plantuml_generator.ts