Yet another PHP GenAI chatbot

🤖 Intelligent RAG (Retrieval-Augmented Generation) chatbot built with PHP. Reads text files, indexes them into a pgvector database and uses AI models via OpenRouter to answer questions and resolve errors with real context — streaming responses word by word via Server-Sent Events (SSE).

A basic Retrieval-Augmented Generation (RAG) implementation for testing purposes, built to enable conversational interactions with Starter Story YouTube video.