Add PHP Media API scaffold and Docker configs

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.

api_examples/create_cast.json

@@ -0,0 +1,8 @@
+{
+  "name": "Tom Hardy",
+  "photo": "https://example.com/tom.jpg",
+  "bio": "English actor known for versatile roles",
+  "birthDate": "1977-09-15",
+  "birthPlace": "Hammersmith, London, England",
+  "occupations": ["Actor", "Producer", "Writer"]
+}