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/gyro/templates/gyro-failure@.service.j2

@@ -0,0 +1,15 @@
+[Unit]
+Description=Notify Telegram about failed Gyro unit %i
+
+[Service]
+Type=oneshot
+User={{ gyro_user }}
+Group={{ gyro_group }}
+EnvironmentFile={{ gyro_config_dir }}/gyro.env
+ExecStart=/usr/local/libexec/gyro-failure-notify %i
+UMask=0077
+NoNewPrivileges=true
+PrivateTmp=true
+ProtectHome=true
+ProtectSystem=strict
+RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6