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

playbooks/backup-sigvild.yml

@@ -0,0 +1,24 @@
+---
+# Sigvild Gallery Data Backup Playbook
+#
+# This playbook creates a backup of the Sigvild Gallery data including:
+# - PocketBase SQLite database (data.db, auxiliary.db)
+# - All uploaded wedding photos and media files
+# - PocketBase logs and system state
+#
+# Usage:
+#   ansible-playbook playbooks/backup-sigvild.yml -l arch-vps
+#   ansible-playbook playbooks/backup-sigvild.yml -l mini-vps
+#
+# Backup location: ~/sigvild-gallery-backup/sigvild-gallery-backup-YYYYMMDDTHHMMSS.tar.gz
+
+- name: Backup Sigvild Gallery Data
+  hosts: all
+  become: true
+  gather_facts: true
+  
+  tasks:
+    - name: Run backup tasks from sigvild-gallery role
+      include_role:
+        name: sigvild-gallery
+        tasks_from: backup.yml