[Suggestion]: implement `knip`

## Summary
Knip is great for checking for unused dependencies and will reduce build times.

## 💬 Description

https://knip.dev/explanations/why-use-knip

## Why do we need it?

Explained in the summary. the repo needs to update typescript before implementing knip.

Start by reviewing the repository's TypeScript setup and the TypeScript update required before introducing Knip. Read the linked Knip explanation, then define the repository configuration and verification needed so unused dependencies are detected and the setup completes successfully.

Written by the indexing model from the issue text.