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-cln-docker/templates/script.sh.j2

@@ -0,0 +1,10 @@
+#!/bin/sh
+# Cleans up anonymous Docker volumes and performs a full Docker system prune.
+
+set -e
+
+echo "Cleaning up anonymous Docker volumes via systemd service..."
+systemctl start {{ SYS_SERVICE_CLEANUP_ANONYMOUS_VOLUMES }} || exit 1
+echo "Pruning Docker system resources (images, containers, networks, build cache)..."
+docker system prune -a -f || exit 2
+echo "Docker prune cleanup finished."