Add HTTPS support with Caddy and clean up legacy files

- Add Caddy reverse proxy for automatic HTTPS with Let's Encrypt
- Update docker-compose.yml with Caddy service and internal networking
- Remove all Redis dependencies (not needed for this deployment)
- Fix Dockerfile permissions for instance and uploads directories
- Move legacy scripts to old_code_documentation folder
  - add_muted_column.py, check_fix_player.py, migrate_add_edit_enabled.py
  - docker-start.sh, run_dev.sh, start.sh, clean_for_deployment.sh
- Add HTTPS_SETUP.md documentation for Caddy configuration
- Update .env.example with DOMAIN and EMAIL variables
- Remove redis package from requirements.txt
- Remove rate limiting Redis storage from config.py

docker-compose.yml

@@ -4,8 +4,8 @@ services:
   digiserver:
     build: .
     container_name: digiserver-v2
-    ports:
-      - "80:5000"
+    expose:
+      - "5000"
     volumes:
       - ./instance:/app/instance
       - ./app/static/uploads:/app/app/static/uploads
@@ -21,14 +21,33 @@ services:
       timeout: 10s
       retries: 3
       start_period: 40s
+    networks:
+      - digiserver-network
 
-  # Optional: Redis for caching (uncomment if needed)
-  # redis:
-  #   image: redis:7-alpine
-  #   container_name: digiserver-redis
-  #   restart: unless-stopped
-  #   volumes:
-  #     - redis-data:/data
+  caddy:
+    image: caddy:2-alpine
+    container_name: digiserver-caddy
+    ports:
+      - "80:80"
+      - "443:443"
+      - "443:443/udp"  # HTTP/3
+    volumes:
+      - ./Caddyfile:/etc/caddy/Caddyfile:ro
+      - caddy-data:/data
+      - caddy-config:/config
+    environment:
+      - DOMAIN=${DOMAIN:-localhost}
+      - EMAIL=${EMAIL:-admin@localhost}
+    depends_on:
+      - digiserver
+    restart: unless-stopped
+    networks:
+      - digiserver-network
 
-# volumes:
-#   redis-data:
+networks:
+  digiserver-network:
+    driver: bridge
+
+volumes:
+  caddy-data:
+  caddy-config: