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/monitoring_blackbox/templates/blackbox.yml.j2

@@ -0,0 +1,13 @@
+modules:
+  http_2xx:
+    prober: http
+    timeout: 10s
+    http:
+      preferred_ip_protocol: ip4
+      valid_status_codes: [200, 301, 302]
+  tcp_connect:
+    prober: tcp
+    timeout: 10s
+  icmp:
+    prober: icmp
+    timeout: 10s