[code] updates

[code] analytics endpoint databricks vector embeddings setup

[code] helper lib fn enhancements

[code] frontend split feat into components

[code] backend route enhancements

[code] helper functions embedding and routing

[code] backend chat route

[code] frontend nextjs v1

Merge branch 'main' of https://github.com/vedanthv/data-engineering-portfolio

[config] update gitignore

[config] gitingore

[code] RAG pipeline poc orders

[docs] todo update

[code] orders data ingestion

[docs] overview and arch v1