Function analyzeStory

Analyzes a story definition for common structural issues.

This function checks for:

• Unreachable nodes: Nodes that cannot be reached from the entry point
• Dead ends: Nodes with no choices and no ending marker
• Inescapable loops: Loops that cannot be exited (no ending, no way out)

Example

const result = analyzeStory(myStory);
if (result.issues.length > 0) {
  console.warn('Story has issues:', result.issues);
}
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