Add Caddyfile for server configuration and API routing; implement player and tasks manager specifications in PROMPT.txt

Caddyfile

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+# Caddyfile for Soundboard Application
+# Replace yourdomain.com with your actual domain
+
+:80 {
+        # Enable compression
+        encode gzip
+
+        # Security headers
+        header {
+                # Security headers
+                Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
+                X-Content-Type-Options "nosniff"
+                X-Frame-Options "DENY"
+                X-XSS-Protection "1; mode=block"
+                Referrer-Policy "strict-origin-when-cross-origin"
+
+                # Remove server information
+                -Server
+        }
+
+        # API routes - proxy to FastAPI backend
+        handle /api/* {
+                reverse_proxy localhost:8000 {
+                        # Headers for proper proxying
+                        header_up Host {upstream_hostport}
+                        header_up X-Real-IP {remote_host}
+                }
+        }
+
+        # WebSocket connections for real-time features
+        handle /socket.io/* {
+                reverse_proxy localhost:8000 {
+                        # WebSocket support
+                        header_up Connection {>Connection}
+                        header_up Upgrade {>Upgrade}
+                        header_up Host {upstream_hostport}
+                        header_up X-Real-IP {remote_host}
+                }
+        }
+
+        # Static assets (built frontend) - serve from dist directory
+        handle {
+                # Serve static files from the built frontend
+                root * /var/www/sdb
+
+                # Cache static assets for better performance
+                @static {
+                        path *.js *.css *.woff *.woff2 *.ttf *.eot *.ico *.png *.jpg *.jpeg *.gif *.svg *.webp
+                }
+                header @static {
+                        Cache-Control "public, max-age=31536000, immutable"
+                }
+
+                # Try files, fallback to index.html for SPA routing
+                try_files {path} /index.html
+                file_server
+        }
+
+        # Logging
+        log {
+                output file /var/log/caddy/soundboard-access.log {
+                        roll_size 100mb
+                        roll_keep 5
+                        roll_keep_for 720h
+                }
+                format json
+                level INFO
+        }
+}