feat: add dockcheck auto-update labels to remaining services

Add mag37.dockcheck.update labels to enable automated container update monitoring for:
- Gotify iOS assistant service
- Karakeep (Hoarder) bookmark manager and all components (Chrome, Meilisearch)
- MMDL task management service
- Postiz social media scheduler and all components (PostgreSQL, Redis)

This completes the rollout of dockcheck labels across all Docker services for consistent update monitoring.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

roles/docker/templates/gotify-compose.yml.j2

@@ -32,6 +32,7 @@ services:
       glance.icon: si:apple
       glance.url: "https://{{ subdomains.gotify_assistant }}/"
       glance.description: iOS notification assistant
+      mag37.dockcheck.update: true
     extra_hosts:
       - "{{ subdomains.auth }}:{{ docker.hairpin_ip }}"
       - "{{ subdomains.gotify }}:{{ docker.hairpin_ip }}"

roles/docker/templates/hoarder-compose.yml.j2

@@ -22,12 +22,14 @@ services:
       glance.url: https://{{ subdomains.bookmarks }}/
       glance.description: Bookmark manager
       glance.id: karakeep
+      mag37.dockcheck.update: true
   chrome:
     image: gcr.io/zenika-hub/alpine-chrome:123
     restart: unless-stopped
     labels:
       glance.name: Chrome
       glance.parent: karakeep
+      mag37.dockcheck.update: true
     command:
       - --no-sandbox
       - --disable-gpu
@@ -41,6 +43,7 @@ services:
     labels:
       glance.name: Meilisearch
       glance.parent: karakeep
+      mag37.dockcheck.update: true
     env_file:
       - .env
     environment:

roles/docker/templates/mmdl-compose.yml.j2

@@ -17,6 +17,7 @@ services:
       glance.url: https://{{ subdomains.tasks }}/
       glance.description: Task and calendar management
       glance.id: mmdl
+      mag37.dockcheck.update: true
 
   mmdl_db:
     image: mysql:8.0

roles/docker/templates/postiz-compose.yml.j2

@@ -38,6 +38,7 @@ services:
       glance.url: https://{{ subdomains.post }}/
       glance.description: Social media scheduler
       glance.id: postiz
+      mag37.dockcheck.update: true
  
   postiz-postgres:
     image: postgres:14.5
@@ -57,6 +58,7 @@ services:
     labels:
       glance.parent: postiz
       glance.name: DB
+      mag37.dockcheck.update: true
   postiz-redis:
     image: redis:7.2
     container_name: postiz-redis
@@ -71,6 +73,7 @@ services:
     labels:
       glance.parent: postiz
       glance.name: Redis
+      mag37.dockcheck.update: true