Performance and settings updates:
- Add a new jellyfin_library_mappings column to the settings table and wire it into the Settings model (update handling and default value). This enables storing Jellyfin library mappings in settings.
- Optimize Cast::list by loading all cast filmography in a single joined query and grouping results per cast to avoid N+1 queries.
- Remove per-item cast/staff loading in Media model to avoid repeated queries during list/search operations.
- Remove game-specific enrichment from MediaController search to stop extra game info lookups during search responses.
These changes reduce repeated DB calls and centralize Jellyfin mapping storage.
Initial project scaffold for a PHP Media API including routing, controllers, models and services under api/ (Router, Media/Cast/Image/Settings controllers, models, database/bootstrap files and automatic docs service). Adds Docker support (Dockerfile, docker-compose.yml, DOCKER_README.md, php-custom.ini), .htaccess for pretty URLs, API documentation and example payloads (API_EXAMPLES.md, api/README.md, api_examples/*.json), image handling service and logging, plus a comprehensive .gitignore. This commit provides a runnable development environment and example requests to get the API up and tested quickly.
