Refactor Umami service in docker-compose: remove umami-db service and update environment variables for database connection

docker-compose.yml

@@ -113,26 +113,12 @@ services:
   ## ─────────────────────────────────────────────
   ## Umami + PostgreSQL — privacy analytics
   ## ─────────────────────────────────────────────
-  umami-db:
-    image: postgres:16
-    container_name: umami-db
-    restart: unless-stopped
-    environment:
-      POSTGRES_USER: ${UMAMI_DB_USER}
-      POSTGRES_PASSWORD: ${UMAMI_DB_PASS}
-      POSTGRES_DB: ${UMAMI_DB_NAME}
-      TZ: "${TZ}"
-    volumes:
-      - umami_db_data:/var/lib/postgresql/data
-    networks: [internal]
 
   umami:
-    image: ghcr.io/umami-software/umami:postgresql-latest
+    image: umamisoftware/umami:postgresql-latest
     container_name: umami
     restart: unless-stopped
-    depends_on: [umami-db]
     environment:
-      DATABASE_URL: postgresql://${UMAMI_DB_USER}:${UMAMI_DB_PASS}@umami-db:5432/${UMAMI_DB_NAME}
       APP_SECRET: ${UMAMI_APP_SECRET}
       TRACKER_SCRIPT_NAME: umami
       TZ: "${TZ}"