…onships and string length adjustments

…tracked

…ction test

…nt creation

…stant into feature/file-upload

don't do alembic migrations for now

…stant into feature/file-upload

…63/study-assistant into feature/file-upload

Co-authored-by: devloai[bot] <168258904+devloai[bot]@users.noreply.github.com>

Removes hardcoded local file path that would break in other environments

- Updated S3 client initialization to use AWS credentials from settings
- This addresses the security vulnerability where client was initialized without proper credentials
- Fixes review comment on line 6 of backend/app/s3.py

Co-authored-by: devloai[bot] <168258904+devloai[bot]@users.noreply.github.com>

…casmith463/study-assistant into feature/enum-question-model

Feature: Use Enum for Question Type in Question Model

…ion functionality

Merge branch 'feature/backend-exam' of https://github.com/monicasmith463/study-assistant into feature/backend-exam

…463/study-assistant into feature/backend-exam

Feature: backend generate exam endpoint

…rdly

Co-authored-by: bito-code-review[bot] <188872107+bito-code-review[bot]@users.noreply.github.com>

…smith463/study-assistant into feature/backend-langchain

Feature: backend OpenAI to use Langchain and Pydantic