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

group_vars/all/08_schedule.yml

@@ -32,7 +32,8 @@ SYS_SCHEDULE_HEALTH_MSMTP:                    "*-*-* 00:00:00"
 SYS_SCHEDULE_CLEANUP_CERTS:                   "*-*-* 20:00"                           # Deletes and revokes unused certs once per day
 SYS_SCHEDULE_CLEANUP_FAILED_BACKUPS:          "*-*-* 21:00"                           # Clean up failed docker backups once per day
 SYS_SCHEDULE_CLEANUP_BACKUPS:                 "*-*-* 22:00"                           # Cleanup backups once per day, MUST be called before disc space cleanup
-SYS_SCHEDULE_CLEANUP_DISC_SPACE:              "*-*-* 23:00"                           # Cleanup disc space once per day
+SYS_SCHEDULE_CLEANUP_DOCKER:                  "*-*-* 23:00"                           # Cleanup docker anonymous volumes and prune ones per day
+SYS_SCHEDULE_CLEANUP_DISC_SPACE:              "*-*-* 23:30"                           # Cleanup disc space once per day
 
 ### Schedule for repair services
 SYS_SCHEDULE_REPAIR_BTRFS_AUTO_BALANCER:      "Sat *-*-01..07 00:00:00"               # Execute btrfs auto balancer every first Saturday of a month