Refactor JVM memory filters, add Redis sizing and Docker cleanup service

- Replace jvm_filters with unified memory_filters (JVM + Redis helpers)
- Add redis_maxmemory_mb filter and unit tests
- Introduce sys-ctl-cln-docker role (systemd-based Docker prune + anon volumes)
- Refactor disk space health check to Python script and wire SIZE_PERCENT_CLEANUP_DISC_SPACE
- Adjust schedules and services for Docker cleanup and disk space health

See discussion: https://chatgpt.com/share/6925c1c5-ee38-800f-84b6-da29ccfa7537

roles/sys-ctl-hlth-disc-space/tasks/01_core.yml

@@ -8,4 +8,5 @@
   vars:
     system_service_on_calendar:    "{{ SYS_SCHEDULE_HEALTH_DISC_SPACE }}"
     system_service_timer_enabled:  true
+    system_service_tpl_exec_start: "{{ system_service_script_exec }} {{ SIZE_PERCENT_CLEANUP_DISC_SPACE }}"
     system_service_tpl_on_failure: "{{ SYS_SERVICE_ON_FAILURE_COMPOSE }} {{ SYS_SERVICE_CLEANUP_DISC_SPACE }}"