feat: enable Explore in all Grafanas

[mmazur]

https://redhat.atlassian.net/browse/AROSLSRE-1399

Why

ARO HCP wants Grafana Viewer-role users to access Explore without granting persistent Editor permissions. Azure Managed Grafana supports this through grafanaConfigurations.users.viewersCanEdit.

What

• Always sets properties.grafanaConfigurations.users.viewersCanEdit to true when grafanactl manage reconcile creates or updates an Azure Managed Grafana instance.
• Works on top of (some future iteration of) Reapply "fix: Refactor grafana provisioning" ARO-HCP#5933

Validation

[vault@csb claude/pr-5933 (pr-5933)]$ az rest --method GET     --url "https://management.azure.com/subscriptions/1d3378d3-5a3f-4712-85a1-2485495dfc4b/resourceGroups/global/providers/Microsoft.Dashboard/grafana/mmazurtesting?api-version=2025-08-01"     --query "properties.grafanaConfigurations.users" -o json
[vault@csb claude/pr-5933 (pr-5933)]$ OVERRIDE_CONFIG_FILE=/tmp/grafana-override.yaml make pipeline/Grafana
make local-run WHAT="--service-group Microsoft.Azure.ARO.HCP.Grafana"
make[1]: Entering directory '/home/vault/work/claude/pr-5933'
(…)
make[1]: Leaving directory '/home/vault/work/claude/pr-5933'
[vault@csb claude/pr-5933 (pr-5933)]$ az rest --method GET     --url "https://management.azure.com/subscriptions/1d3378d3-5a3f-4712-85a1-2485495dfc4b/resourceGroups/global/providers/Microsoft.Dashboard/grafana/mmazurtesting?api-version=2025-08-01"     --query "properties.grafanaConfigurations.users" -o json
{
  "viewersCanEdit": true
}

[Copilot]

Pull request overview

Enables Grafana “Explore” access for Viewer-role users in Azure Managed Grafana by ensuring the Azure resource configuration sets grafanaConfigurations.users.viewersCanEdit to true during grafanactl manage reconcile, aligning with the stated ARO HCP requirement.

Changes:

• Adds azcore/to usage to set a *bool value conveniently.
• Sets properties.grafanaConfigurations.users.viewersCanEdit = true on every create/update performed by grafanactl manage reconcile.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.