fix: Change Adminer port from 8080 to 8081 to avoid port conflicts

e-voting-system/docker-compose.yml

@@ -108,14 +108,14 @@ services:
 
   # ================================================================
   # Optional: Adminer (Database Management UI)
-  # Access at http://localhost:8080
+  # Access at http://localhost:8081
   # ================================================================
   adminer:
     image: adminer:latest
     container_name: evoting_adminer
     restart: unless-stopped
     ports:
-      - "8080:8080"
+      - "8081:8080"
     depends_on:
       - mariadb
     networks: