- Changed the CI workflow to run tests inside a NixOS virtual machine instead of directly on the runner.
- Updated the NixOS VM configuration to include necessary dependencies and services for testing.
- Added a script to handle test execution within the VM, including setup for Python and Node.js environments.
- Implemented SSH access to the VM for remote operations and streamlined the process of starting and stopping the VM during tests.
- Enhanced the workflow to build the VM and copy the codebase for testing, ensuring a more isolated and consistent testing environment.
- Introduced `/api/tmdb` and `/api/collection/missing-locations` endpoints to the backend for improved media management.
- Added a new `get_media_by_country` function in the collection API to fetch media items based on country codes.
- Updated configuration to allow overriding *arr base URLs via environment variables for better flexibility.
- Enhanced frontend with a new `MissingLocations` component and integrated it into the routing structure.
- Improved the `CollectionMap` component to handle country selection and display media items accordingly.
- Added testing dependencies in `requirements.txt` and updated frontend configuration for testing support.
