(config) Convert docker-compose paths to absolute for Portainer compatibility

Changed relative volume paths to absolute paths and updated image reference to use full registry path. This enables deployment via Portainer which doesn't have working directory context.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

docker-stack/docker-compose-standalone.yaml

@@ -13,12 +13,12 @@ networks:
 
 services:
   web-app:
-    image: utility-bills-tracker:${IMAGE_VERSION}
+    image: registry.budakova.org/knee-cola/utility-bills-tracker:${IMAGE_VERSION}
     networks:
       - traefik-network
       - util-bills-mongo-network
     volumes:
-      - ./web-app/etc/hosts/:/etc/hosts
+      - /home/knee-cola/docker/evidencija-rezija/web-app/etc/hosts/:/etc/hosts
     environment:
       MONGODB_URI: mongodb://rezije.app:w4z4piJBgCdAm4tpawqB@mongo:27017/utility-bills
       GOOGLE_ID: 355397364527-adjrokm6hromcaaar0qfhk050mfr35ou.apps.googleusercontent.com
@@ -55,8 +55,8 @@ services:
       MONGO_INITDB_ROOT_USERNAME: root
       MONGO_INITDB_ROOT_PASSWORD: example
     volumes:
-      - ./mongo-volume:/data/db
-      - ./mongo-backup:/backup
+      - /home/knee-cola/docker/evidencija-rezija/mongo-volume:/data/db
+      - /home/knee-cola/docker/evidencija-rezija/mongo-backup:/backup
     networks:
       - util-bills-mongo-network
   mongo-express: