Address recent bugs

[srbalakr]

Purpose

This PR address some of the recent bugs

1. Users experience 401 during index build.
   • Refresh token every 5 minutes for open ai calls
2. Suggestion prompt does not work
   • Gpt turbo do not handle lengthy system prompts. Moved document sources to user conversation

Does this introduce a breaking change?

[ ] Yes
[x ] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ x] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

What to Check

Verify that the following are valid

• ...

Other Information

[pamelafox]

In the future, I think it'd be nice to send unrelated bug fixes in two different PRs. That makes it easy to patch or revert single fixes as needed. Thanks!

[pamelafox]

Okay, I stepped through the time logic with my partner, it does work - I was flipping the times in my head.