DST-151: add code for integration

[ccheng26]

Ensure mistral-7b-instruct-v0.1.Q4_0.gguf is downloaded and in models/

Run instructions

Start the chatbot service: `./chainlit-household-bot.py` or `chainlit run chainlit-household-bot.py`

Click on Settings > Choose embedding/llm > Enable Use vector db sources

Click on upload query
Add guru_card json file
Ask query after processing time

[yoomlam]

preliminary review

[ccheng26]

GPT4All issues will be addressed in https://navalabs.atlassian.net/browse/DST-152

[yoomlam]

Bug: A chroma folder is being created, in addition to chroma_db.

To replicate:

1. Quit Chainlit
2. Delete folders

rm -rf chroma chroma_db

3. Then start Chainlit
4. Note the chroma folder was created

[ccheng26]

Bug: A chroma folder is being created, in addition to chroma_db.

To replicate: Stop Chainlit

rm -rf chroma chroma_db

Then start Chainlit

This is due to the use of chroma.PersistentClient, the folder is for the instance of chroma, not the db itself. To reset the db we need to call the chromadb package directly for the reset option, this option isn't available for the package in langchain_community.vectorstores

[yoomlam]

Approved, after making suggested changes.