Refactor VPN proxy client implementation

src/web/features/instructions/prometheus.ts

@@ -0,0 +1,13 @@
+import dashboard from '../../../../monitoring/grafana/harbor-gateway.json' with { type: 'json' };
+
+export const grafanaDashboardJson = JSON.stringify(dashboard, null, 2);
+
+export function prometheusScrapeConfig(controlHost: string) {
+  return `scrape_configs:
+  - job_name: harbor_gateway
+    scrape_interval: 30s
+    scrape_timeout: 3s
+    metrics_path: /metrics
+    static_configs:
+      - targets: ["${controlHost}"]`;
+}