v5 was created by restoring v3

I'll remove MongoDB from the project completely. Here are the changes:

I've completely removed MongoDB from the Local Farmer Marketplace project. Here's what I did:

1. Deleted the MongoDB Utility File

• Removed lib/mongodb.ts which contained the MongoDB client setup

2. Simplified the Chat API Route

• Removed all MongoDB-related code from app/api/chat/route.ts
• Removed the MongoDB import and client initialization
• Removed all database operations for storing chat messages
• Kept only the essential OpenAI integration for generating responses

3. Removed MongoDB Dependencies

• The API route no longer depends on MongoDB
• No chat history is being stored in a database anymore

4. Preserved Chat Functionality

• The chatbot still works exactly the same from the user's perspective
• Messages are still displayed in the chat interface
• The only difference is that chat history is not persisted between sessions

The application now works without any MongoDB dependencies. The chat functionality remains intact but operates entirely in-memory without database storage. This means chat history will be lost when the user refreshes the page or closes the browser, but the core functionality of getting AI-powered farming assistance is still available.

If you want to add persistent storage in the future without using MongoDB, you could consider alternatives like:

• Local storage for client-side persistence
• A different database like SQLite or PostgreSQL
• Serverless storage options like Vercel KV or Vercel Postgres