- 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.
- Introduced a new `host` option in `flake.nix` to specify the server's bind address, defaulting to `0.0.0.0`.
- Updated `run.sh` to use the `HOST` environment variable for server binding.
- Modified `config.py` to read the `HOST` from environment variables, defaulting to `0.0.0.0`.
- Enhanced `README.md` with instructions for setting up the `HOST` variable and clarified access details for development and production modes.
- Adjusted `vite.config.ts` to allow frontend access from other computers by default.
