Made app more modular.

Fixed some bugs.
Added some functionality.

docker-compose.yml

@@ -1,9 +1,15 @@
 services:
-  ctf-app:
+  ctf-platform:
     build: .
     container_name: hipctf
     ports:
-      - "3000:3000"
+      - "3001:3000"
+    volumes:
+      # Map the local data directory to the container's DB path
+      - ./data:/app/data
+      # Map the uploads directory for persistent challenge files
+      - ./uploads:/app/uploads
     environment:
       - NODE_ENV=production
-    restart: unless-stopped
+      - PORT=3000
+    restart: unless-stopped