Migrate sigvild-gallery to production environment

- Add multi-environment architecture (homelab + production)
- Create production environment (mini-vps) for client projects
- Create homelab playbook for arch-vps services
- Create production playbook for mini-vps services
- Move sigvild-gallery from homelab to production
- Restructure variables: group_vars/production + host_vars/arch-vps
- Add backup-sigvild.yml playbook with auto-restore functionality
- Fix restore logic to check for data before creating directories
- Add manual variable loading workaround for Ansible 2.20
- Update all documentation for multi-environment setup
- Add ADR-007 documenting multi-environment architecture decision

roles/sigvild-gallery/defaults/main.yml

@@ -25,7 +25,7 @@ sigvild_gallery_guest_username: guest
 sigvild_gallery_guest_password: "{{ vault_sigvild_guest_password }}"
 
 # Build configuration
-sigvild_gallery_local_project_path: "{{ ansible_env.PWD }}/sigvild-gallery"
+sigvild_gallery_local_project_path: "{{ lookup('env', 'HOME') }}/sigvild-gallery"
 
 # Service configuration
 sigvild_gallery_service_enabled: true
@@ -33,7 +33,7 @@ sigvild_gallery_service_state: started
 
 # Backup configuration
 sigvild_gallery_backup_enabled: true
-sigvild_gallery_backup_local_path: "{{ playbook_dir }}/backups/sigvild-gallery"
+sigvild_gallery_backup_local_path: "{{ lookup('env', 'HOME') }}/sigvild-gallery-backup/"
 
 # Caddy integration (assumes caddy role provides these)
 # caddy_sites_enabled_dir: /etc/caddy/sites-enabled