Add new Shopware 6 role with OIDC/LDAP plugin integration and Docker-based deployment configuration.

Includes:
- New role: web-app-shopware (Docker, MariaDB, Redis, OpenSearch)
- Updated networks and ports configuration
- Automated install, migration, and admin creation
- Optional IAM integration via OIDC/LDAP plugins

Reference: https://chatgpt.com/share/6907b0d4-ab14-800f-b576-62c0d26c8ad1

roles/web-app-shopware/templates/env.j2

@@ -0,0 +1,32 @@
+# DOMAIN/URL
+DOMAIN={{ domains | get_domain(application_id) }}
+APP_URL="{{ domains | get_url(application_id, WEB_PROTOCOL) }}/"
+
+# Shopware
+APP_ENV={{ 'dev' if (ENVIRONMENT | lower) == 'development' else 'prod' }}
+APP_URL_TRUSTED_PROXIES=127.0.0.1
+INSTANCE_ID={{ application_id }}
+
+# Database
+DATABASE_URL="mysql://{{ database_username }}:{{ database_password }}@{{ database_host }}:{{ database_port }}/{{ database_name }}"
+
+# Redis (optional)
+{% if SHOPWARE_REDIS_ENABLED | bool %}
+REDIS_URL="redis://{{ SHOPWARE_REDIS_ADDRESS }}/0"
+CACHE_URL="redis://{{ SHOPWARE_REDIS_ADDRESS }}/1"
+MESSENGER_TRANSPORT_DSN="redis://{{ SHOPWARE_REDIS_ADDRESS }}/2"
+{% else %}
+CACHE_URL="file://cache"
+{% endif %}
+
+# Search
+{% if SHOPWARE_SEARCH_ENABLED %}
+{% if SHOPWARE_SEARCH_ENGINE == 'opensearch' %}
+OPENSEARCH_URL="http://opensearch:9200"
+{% else %}
+ELASTICSEARCH_URL="http://elasticsearch:9200"
+{% endif %}
+{% endif %}
+
+# Mail (Mailu)
+MAILER_DSN="smtps://{{ users['no-reply'].email }}:{{ users['no-reply'].mailu_token }}@{{ SYSTEM_EMAIL.HOST }}:{{ SYSTEM_EMAIL.PORT }}"