fix(monitoring): update Node Exporter Full dashboard to revision 41

[Copilot]

Dashboard 1860 revision 37 uses grafana-piechart-panel, a legacy community plugin incompatible with Grafana 10+. Running Grafana 11.4.0 with this revision causes "An error occurred with the plugin" across all panels using pie charts.

Changes

• infrastructure/monitoring/grafana-helmrelease.yaml: Bump Node Exporter Full dashboard (gnetId 1860) from revision 37 → 41

# before
node-exporter:
  gnetId: 1860
  revision: 37
  datasource: Prometheus

# after
node-exporter:
  gnetId: 1860
  revision: 41
  datasource: Prometheus

Revisions 38+ replaced all grafana-piechart-panel panel types with the native built-in piechart panel that ships with Grafana core since v7.2.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• grafana.com
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node /home/REDACTED/work/_temp/ghcca-node/node/bin/node --enable-source-maps /home/REDACTED/work/_temp/copilot-developer-action-main/dist/index.js (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Node Exporter Full dashboard plugin error</issue_title>
<issue_description>The Node Exporter Full dashboard reports:

“An error occurred with the plugin”

Scope
• Identify which panel/plugin is failing
• Check Grafana plugin compatibility
• Update dashboard or plugin versions if needed

Acceptance Criteria
• Dashboard loads without plugin errors
</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Node Exporter Full dashboard plugin error #4

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.