fix: Gitea Traefik routing and connection pool optimization

- Remove middleware reference from Gitea Traefik labels (caused routing issues)
- Optimize Gitea connection pool settings (MAX_IDLE_CONNS=30, authentication_timeout=180s)
- Add explicit service reference in Traefik labels
- Fix intermittent 504 timeouts by improving PostgreSQL connection handling

Fixes Gitea unreachability via git.michaelschiemer.de

deployment/scripts/test-backup.sh

@@ -0,0 +1,61 @@
+#!/bin/bash
+# Test Backup Playbook
+# Führt ein Test-Backup aus und verifiziert die Ergebnisse
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+ANSIBLE_DIR="$SCRIPT_DIR/../ansible"
+
+echo "=========================================="
+echo "Backup Playbook Test"
+echo "=========================================="
+echo ""
+
+# Check if we're in the right directory
+if [ ! -f "$ANSIBLE_DIR/playbooks/backup.yml" ]; then
+    echo "Error: backup.yml not found at $ANSIBLE_DIR/playbooks/backup.yml"
+    exit 1
+fi
+
+# Check if inventory exists
+if [ ! -f "$ANSIBLE_DIR/inventory/production.yml" ]; then
+    echo "Error: production.yml inventory not found"
+    exit 1
+fi
+
+# Check if vault password file exists
+VAULT_PASS_FILE="$ANSIBLE_DIR/secrets/.vault_pass"
+if [ ! -f "$VAULT_PASS_FILE" ]; then
+    echo "Warning: Vault password file not found at $VAULT_PASS_FILE"
+    echo "Creating empty vault password file..."
+    touch "$VAULT_PASS_FILE"
+    chmod 600 "$VAULT_PASS_FILE"
+fi
+
+echo "Running backup playbook..."
+echo ""
+
+cd "$ANSIBLE_DIR"
+
+ansible-playbook -i inventory/production.yml \
+    playbooks/backup.yml \
+    --vault-password-file "$VAULT_PASS_FILE" \
+    -e "backup_retention_days=1" \
+    -e "verify_backups=true"
+
+echo ""
+echo "=========================================="
+echo "Backup Test Complete"
+echo "=========================================="
+echo ""
+echo "Next steps:"
+echo "1. Verify backup files were created on the server"
+echo "2. Check backup metadata file"
+echo "3. (Optional) Test restore process"
+echo ""
+echo "To verify backups on server:"
+echo "  ssh deploy@94.16.110.151"
+echo "  ls -lh ~/backups/backup_*/"
+echo "  cat ~/backups/backup_*/backup_metadata.txt"
+