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/inventory/host_vars/gyro/vault.yml.example

@@ -0,0 +1,10 @@
+---
+# Copy to vault.yml, replace the placeholders, then run:
+# ansible-vault encrypt inventory/host_vars/gyro/vault.yml
+gyro_tinvest_token: t.replace-me
+gyro_tinvest_account_id: replace-me
+gyro_telegram_bot_token: replace-me
+gyro_telegram_user_id: "replace-me"
+gyro_telegram_proxy: http://192.168.1.27:7890
+gyro_dry_run_override: "true"
+gyro_secrets_configured: true