Round 9: Homepage variable replacement and additional stack deployment

Features added:
✅ Homepage config variable replacement - Fixed HOMEPAGE_VAR_DOMAIN substitution
  - Homepage doesn't support environment variables in configs
  - Deploy script now uses sed to replace {{HOMEPAGE_VAR_DOMAIN}} with actual domain
  - All homepage/*.yaml files processed after template copy

✅ Additional stacks deployment to Dockge
  - 7 additional stacks now copied to /opt/stacks/: media, media-extended,
    homeassistant, productivity, monitoring, utilities, alternatives
  - Stacks are NOT started automatically - user deploys via Dockge UI as needed
  - Optional image pre-pull with user prompt (defaults to no)
  - Significantly improves first-time Dockge experience

✅ Watchtower temporarily disabled
  - Documented Docker API v1.44 compatibility issue with Docker 29.x
  - Added clear instructions for re-enabling when issue is resolved
  - Infrastructure stack now deploys 6 services (was 7)

Deployment workflow:
1. Core stack (4 services) - DuckDNS, Traefik, Authelia, Gluetun
2. Infrastructure stack (6 services) - Dockge, Pi-hole, Dozzle, Glances, Docker Proxy
3. Dashboards stack (2 services) - Homepage (configured), Homarr
4. Additional stacks (7 stacks copied, not started)

Tested: All 11 active containers healthy, all stacks visible in Dockge

docker-compose/infrastructure.yml

@@ -67,25 +67,31 @@ services:
       - "traefik.http.services.pihole.loadbalancer.server.port=80"
 
   # Watchtower - Automatic container updates
-  # Runs silently in background, no UI  
-  watchtower:
-    image: containrrr/watchtower:1.7.2
-    container_name: watchtower
-    restart: unless-stopped
-    networks:
-      - homelab-network
-    volumes:
-      - /var/run/docker.sock:/var/run/docker.sock
-    environment:
-      - DOCKER_API_VERSION=1.44
-      - WATCHTOWER_CLEANUP=true
-      - WATCHTOWER_INCLUDE_RESTARTING=true
-      - WATCHTOWER_SCHEDULE=0 0 4 * * *  # 4 AM daily
-      - WATCHTOWER_NOTIFICATIONS=shoutrrr
-      - WATCHTOWER_NOTIFICATION_URL=${WATCHTOWER_NOTIFICATION_URL}
-    labels:
-      - "homelab.category=infrastructure"
-      - "homelab.description=Automatic Docker container updates"
+  # TEMPORARILY DISABLED: Docker API version incompatibility with Docker 29.x
+  # Watchtower versions have API compatibility issues:
+  # - v1.7.1: Uses API v1.25 (too old for Docker 29.x which requires min v1.44)
+  # - v1.7.2+/latest: Has issues with API negotiation
+  # Issue tracked for resolution in future release
+  # To enable: Uncomment service below and run: docker compose up -d watchtower
+  # 
+  # watchtower:
+  #   image: containrrr/watchtower:1.7.1
+  #   container_name: watchtower
+  #   restart: unless-stopped
+  #   networks:
+  #     - homelab-network
+  #   volumes:
+  #     - /var/run/docker.sock:/var/run/docker.sock
+  #   environment:
+  #     - DOCKER_API_VERSION=1.44
+  #     - WATCHTOWER_CLEANUP=true
+  #     - WATCHTOWER_INCLUDE_RESTARTING=true
+  #     - WATCHTOWER_SCHEDULE=0 0 4 * * *  # 4 AM daily
+  #     - WATCHTOWER_NOTIFICATIONS=shoutrrr
+  #     - WATCHTOWER_NOTIFICATION_URL=${WATCHTOWER_NOTIFICATION_URL}
+  #   labels:
+  #     - "homelab.category=infrastructure"
+  #     - "homelab.description=Automatic Docker container updates"
 
   # Dozzle - Real-time Docker log viewer
   # Access at: https://dozzle.${DOMAIN}