feat: add Azure AKS deployment infrastructure with Terraform

- Add Terraform configuration for AKS cluster deployment
- Add Kubernetes manifests for Laravel app (deployment, services, secrets)
- Add PostgreSQL on Kubernetes with multi-schema support
- Add Nginx Ingress Controller configuration
- Add GitHub Actions workflow for Azure deployment
- Add HTTP Basic Authentication for production
- Add database restore functionality via Kubernetes jobs
- Update Dockerfile and nginx config for production
- Update database.php for multi-schema connections
- Add deployment documentation and quickstart guides

Deployed version: 1.0.7 at http://72.144.113.194/

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

terraform/db-restore.tf

@@ -0,0 +1,15 @@
+# Note: Database backup files are too large for ConfigMaps (>1MB limit)
+# Use manual restore via kubectl after deployment instead:
+#
+# kubectl cp ../backups/backup_backend_20251203_101741.dump \
+#   laravel-app/postgresql-0:/tmp/backup.dump
+#
+# kubectl exec -it -n laravel-app postgresql-0 -- \
+#   pg_restore -U pgadmin -d laravel_app --clean --if-exists \
+#   /tmp/backup.dump
+#
+# Or use the restore script: ./scripts/restore-db.sh
+
+# Disabled: Automatic database restore via Terraform
+# The ConfigMap approach doesn't work for files >1MB
+# Use manual restore after deployment (see comments above)