Update Docker Registry URLs to HTTPS endpoint (registry.michaelschiemer.de)

- Replace git.michaelschiemer.de:5000 (HTTP) with registry.michaelschiemer.de (HTTPS)
- Update all Ansible playbooks and configuration files
- Update CI/CD workflows to use HTTPS registry endpoint
- Update Docker Compose files with new registry URL
- Update documentation and scripts

Benefits:
- Secure HTTPS connection (no insecure registry config needed)
- Consistent use of HTTPS endpoint via Traefik
- Better security practices for production deployment

.gitea/workflows/production-deploy.yml

@@ -18,7 +18,7 @@ on:
         type: boolean
 
 env:
-  REGISTRY: git.michaelschiemer.de:5000
+  REGISTRY: registry.michaelschiemer.de
   IMAGE_NAME: framework
   DEPLOYMENT_HOST: 94.16.110.151
 
@@ -248,10 +248,9 @@ jobs:
           chmod 600 ~/.ssh/production
           ssh-keyscan -H ${{ env.DEPLOYMENT_HOST }} >> ~/.ssh/known_hosts
 
-      - name: Install Ansible
-        run: |
-          apt-get update
-          apt-get install -y ansible
+      # Ansible is pre-installed in php-ci image
+      - name: Verify Ansible installation
+        run: ansible --version
 
       - name: Deploy via Ansible
         run: |