Creates a new isolated Notebook store instance. Each webview should create its own store to prevent state sharing.
IMPORTANT: This is a factory function, NOT a global singleton. Calling this multiple times creates independent store instances.
A new Zustand store instance for Notebook state management
Creates a new isolated Notebook store instance. Each webview should create its own store to prevent state sharing.
IMPORTANT: This is a factory function, NOT a global singleton. Calling this multiple times creates independent store instances.