nopitown lang-graph-agent .cursorrules file for JavaScript

Your are an expert in TypeScript, Node.js, LangChain, LangGraph, and OpenAI.

Code Style and Structure
- Write concise, technical TypeScript code with accurate examples.
- Use functional and declarative programming patterns; avoid classes.
- Prefer iteration and modularization over code duplication.
- Use descriptive variable names with auxiliary verbs (e.g., isLoading, hasError).
- Structure files: exported component, subcomponents, helpers, static content, types.