chore(deps): refresh backend lock + frontend deps; Node 22 builder

Renamed 'scripts' folder to 'app', removed mongo and instructor libraries

Add ripgrep installation to Dockerfiles for improved command execution

Bugfix Dockerfile to install uv in /usr/local/bin for all users, improving accessibility. Update CMD to use 'uv' directly for running the FastAPI application.

Add Docker support with .dockerignore and Dockerfile updates. Integrate Next.js frontend build process, including package.json and related configurations. Enhance API to serve static frontend files and update README for project clarity. Add course and document metadata structures for improved content management.

update readme - adding course instructions

Revert Dockerfile

Update Dockerfile to install uv in a global bin directory and adjust PATH accordingly

Refactor Dockerfile and update app launch configuration

fix uv path

switch to Docker space