feat: implement file deletion functionality and enhance deployment script

docker/docker-compose.yml

@@ -1,6 +1,9 @@
 services:
   backerup-website:
-    image: gitea.doomlabs.de/kptltd00m/backerup-website:latest
+    build:
+      context: ..
+      dockerfile: docker/Dockerfile
+    image: backerup-website:latest
     container_name: backerup-website
     restart: unless-stopped
     ports:
@@ -10,6 +13,9 @@ services:
     environment:
       - NODE_ENV=production
       - NEXT_TELEMETRY_DISABLED=1
+      - AUTH_SECRET=tSdfJ57w1IyCpkZijj4UEytTmqk+PWRr45R9BC077cw=
+      - ADMIN_USERNAME=admin
+      - ADMIN_PASSWORD=admin333
 
 volumes:
   backerup_data: