This commit integrates pip-audit to enforce vulnerability checks in CI. Dependencies with unresolved HIGH/CRITICAL vulnerabilities will block builds unless explicitly allowlisted. The process is documented, with a strict policy to ensure exceptions are trackable and time-limited.
Replaced local builds with prebuilt backend and frontend Docker images for simplified deployment. Updated documentation and Makefile to reflect the changes and added a bootstrap script for quick setup of deployment files. Removed deprecated `VITE_API_URL` variable and references to streamline the setup.
Replaced German text with English across the frontend UI for consistency and accessibility. Enhanced clarity in `.env.example` and `README.md`, adding detailed comments for environment variables and prerequisites. Improved documentation for setup, security, and troubleshooting.
