Refactored Redis resource include macro and increased memory limits

- Replaced deprecated lookup(vars=...) in svc-db-redis with macro-based include (Ansible/Jinja safe)
- Redis now uses higher resource values (1 CPU, 1G reserved, 8G max, 512 pids)
- Enables stable Whiteboard operation with >3.5 GB Redis memory usage
- Related conversation: https://chatgpt.com/share/68f67a00-d598-800f-a6be-ee5987e66fba

roles/svc-db-redis/templates/service.yml.j2

@@ -16,5 +16,12 @@
       retries: 30
     networks:
       - default
-    {{ lookup('template', 'roles/docker-container/templates/resource.yml.j2',vars={'service_name':'redis'}) | indent(4) }}
+{% macro include_resource_for(svc, indent=4) -%}
+  {% set service_name = svc -%}
+  {%- set _snippet -%}
+{% include 'roles/docker-container/templates/resource.yml.j2' %}
+  {%- endset -%}
+{{ _snippet | indent(indent, true) }}
+{%- endmacro %}
+{{ include_resource_for('redis') }}
 {{ "\n" }}