Nisha1811/invoice-intelligent-system ? reverse-engineered prompt

Build me a simple Streamlit app where I can upload invoice PDFs or invoice images and then ask questions about them in plain English.

I want it to read the invoice text, split it into searchable pieces, save those pieces locally, and then use that context to answer things like invoice number, total amount, GST number, vendor address, mobile number, and line items with quantity and price. If the invoice is an image, please support OCR too. Use a local JSON based store for the extracted data and make the answers come only from the invoice content, not from guesses.

Please include a clean UI, a place to upload files, and a chat style question box. Use the Groq API for the answer generation, and make it easy to set the API key from an env file. If anything depends on current library docs or deployment details, look them up online and wire it up properly.