Improve (L)CDVN local dashboards

[OisinKyne]

🎯 Problem to be solved

Our local dashes are stale.

🛠️ Proposed solution

Our claude code's can now read and write from hosted and local dashboards. This means we can plan and create full node dashboards and charon specific dashboards locally, as well as creating a claude skill for reviewing grafana programatically.

• Approved design doc: link
• Core team consensus on the proposed solution

Describe the solution to be implemented

🧪 Tests

• Tested by new automated unit/integration/smoke tests
• Manually tested on core team/canary/test clusters
• Manually tested on local compose simnet