Export Zustand stores and add documentation comments

Co-authored-by: mikebarkmin <2592379+mikebarkmin@users.noreply.github.com>

Author: Copilot

packages/learningmap/src/editorStore.ts

@@ -3,6 +3,8 @@ import { temporal } from 'zundo';
 import { Node, Edge, applyNodeChanges, applyEdgeChanges, addEdge, NodeChange, EdgeChange, Connection } from '@xyflow/react';
 import { NodeData, RoadmapData, Settings, ImageNodeData, TextNodeData } from './types';
 
+// Note: This is a global store for the editor. Typically only one editor instance is active at a time.
+// If you need multiple independent editor instances, consider creating store instances per component or using context.
 export interface EditorState {
   // Core data
   nodes: Node<NodeData>[];

packages/learningmap/src/index.ts

@@ -7,3 +7,5 @@ export type { RoadmapData, RoadmapState } from "./types";
 export type { LearningMapProps } from "./LearningMap";
 export type { LearningMapEditorProps } from "./LearningMapEditor";
 export { LearningMap, LearningMapEditor };
+export { useEditorStore, useTemporalStore } from "./editorStore";
+export { useViewerStore } from "./viewerStore";

packages/learningmap/src/viewerStore.ts

@@ -1,8 +1,9 @@
 import { create } from 'zustand';
 import { Node, Edge, applyNodeChanges, NodeChange } from '@xyflow/react';
 import { NodeData, RoadmapData, RoadmapState, Settings } from './types';
-import { persist, createJSONStorage } from 'zustand/middleware';
 
+// Note: This is a global store. If you need multiple independent LearningMap instances
+// on the same page, consider creating store instances per component or using context.
 export interface ViewerState {
   // Core data
   nodes: Node<NodeData>[];