WIP - Report before AWS collapse.

[glovek08]

I'm creating this issue because I was working on pydantic v2 validation and then AWS collapsed, so it's more like a reminder to pick up later.

Current problems I was identifying:

• Graduate filters returning wrong matches.
• Problems with adding annotations, tutorsFeedback model is not accepting optional values, I think it's because the setters don't have a return statement.
• Add annotation is not appending to the user model, it returns 201 but then the user is not being updated.
• Add annotations modal is not updating after invalidateAll.
• Delete annotation returns 500.
• Add & delete tutor feedback returns 500.

[glovek08]

the most up-to-date work is inside the EC2 instance under backend_v2 branch.

[glovek08]

Annotation system working, models normalized, now the problem is that I broke the query search.