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/emergency_access/templates/emergency-reverse-ssh.timer.j2

@@ -0,0 +1,10 @@
+[Unit]
+Description=Expire HomeLab reverse SSH rescue tunnel after {{ emergency_tunnel_ttl }}
+
+[Timer]
+OnActiveSec={{ emergency_tunnel_ttl }}
+AccuracySec=1s
+Unit=emergency-reverse-ssh-expire.service
+
+[Install]
+WantedBy=timers.target