Initial commit: Ansible playbook for Gitea Act Runner deployment

Automated deployment of act_runner on Ubuntu 20.04+ servers:
- Docker CE installation (DEB822 format)
- Node.js 24.x via NodeSource
- act_runner binary with SHA256 verification
- systemd service with security hardening
- CI: ansible-lint via Gitea Actions

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,46 @@
+# =============================================================================
+# Gitignore - Gitea Act Runner Ansible Playbook
+# =============================================================================
+
+# Ansible Vault - NEVER commit actual vault files
+group_vars/all/vault.yml
+group_vars/*/vault.yml
+*.vault.yml
+!*.vault.yml.example
+
+# Vault password files
+.vault_pass
+.vault_password
+*.vault_pass
+
+# Ansible retry files
+*.retry
+
+# Python
+__pycache__/
+*.py[cod]
+*.pyo
+.Python
+*.egg-info/
+.eggs/
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# Temp files
+*.tmp
+*.temp
+*.log
+
+# SSH keys (if accidentally placed here)
+*.pem
+*.key
+id_rsa*