debug(monitoring): add Grafana provisioning diagnostics during deployment

scripts/deploy-prod.sh

@@ -162,6 +162,14 @@ for i in $(seq 1 "$HEALTH_CHECK_MAX_ITERATIONS"); do
     echo "=== Recreating Grafana to load updated dashboards ==="
     docker compose -f monitoring/docker-compose.monitoring.yml up -d --force-recreate grafana 2>&1 || true
 
+    # Diagnostics for Grafana dashboard loading
+    echo "=== Waiting for Grafana initialization ==="
+    sleep 4
+    echo "=== Grafana Mounted Dashboards ==="
+    docker exec memento-grafana ls -la /etc/grafana/dashboards || true
+    echo "=== Grafana Container Logs (Provisioning/Errors) ==="
+    docker logs memento-grafana --tail=100 || true
+
     if docker ps --format '{{.Names}}' | grep -q "^memento-prometheus$"; then
       echo "=== Reloading Prometheus configuration ==="
       docker compose -f monitoring/docker-compose.monitoring.yml exec -T prometheus kill -SIGHUP 1 2>/dev/null || true