MarceloPY722/Arandu-Ai — reverse-engineered prompt

Build me a simple full stack web app called Arandu AI. I want a clean chat style interface in the browser where I can talk to an AI model running locally through Ollama, send messages, and see the replies stream back smoothly. Please also add basic conversation history so chats can be saved and loaded later, using the existing database setup, and make the server handle the AI requests in a reliable way so it does not feel slow or break on longer chats.

Keep the design modern but simple, in Spanish friendly text if that fits the project name. I would like sensible environment variable setup, clear error messages if Ollama or the database is not available, and an easy way to run everything locally for development.

Use the current project structure instead of starting over, and wire up the frontend, backend, and database so the app actually works end to end. If anything is unclear, look up the current docs online and make the most practical version.