Capture current Ansible control plane state

Commit the accumulated infrastructure work that was living only in the
working tree: monitoring stack, emergency access/bot, gyro allocator,
grimmory, adguard, backup audit and the OpenCode agent definitions.

Also ignore Python bytecode, local archives and Nix/direnv artifacts.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GTocXkGUUazHdKKd3r9k71

ansible/roles/backup_audit/defaults/main.yml

@@ -0,0 +1,31 @@
+---
+backup_audit_log_file: /var/log/homelab-backup-audit.log
+backup_audit_timer_oncalendar: "*-*-* 06:00:00"
+backup_audit_timer_randomized_delay: 10m
+
+backup_audit_pbs_vmids:
+  - vmid: 132
+    max_age_hours: 48
+  - vmid: 140
+    max_age_hours: 48
+  - vmid: 141
+    max_age_hours: 48
+  - vmid: 142
+    max_age_hours: 48
+  - vmid: 143
+    max_age_hours: 48
+  - vmid: 144
+    max_age_hours: 48
+  - vmid: 145
+    max_age_hours: 48
+  - vmid: 146
+    max_age_hours: 48
+  - vmid: 147
+    max_age_hours: 48
+  - vmid: 149
+    max_age_hours: 48
+  - vmid: 150
+    max_age_hours: 48
+
+backup_audit_restic_profiles: []
+backup_audit_metrics_dir: /var/lib/node_exporter/textfile_collector