feat: add grafana dashboards components

[WashingtonKK]

Closes: #3886

This expands the grafana integration by adding the following dashboard focused actions:

• grafana.searchDashboards (Action)
• grafana.getDashboard (Action)
• grafana.createDashboardShareLink (Action)
• grafana.renderPanel (Action)

Demo Video

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Note

Medium Risk
Adds several new Grafana API integrations (folders, dashboard search/details, render/share URL construction) and wires them into workflow configuration and UI, which could impact Grafana request behavior and execution outputs. Risk is moderate due to new external API surface and URL-building logic, but limited to the Grafana integration path.

Overview
Expands the Grafana integration from alerts/queries to dashboard-focused actions: searchDashboards, getDashboard, createDashboardShareLink, and renderPanel, and registers them as available workflow components.

Updates the Grafana API client to support listing folders, searching dashboards, fetching dashboard details (including panel summaries), and constructing image-render URLs; ListResources now exposes folders and dashboards for resource pickers and stores dashboard title metadata for UI display.

Adds corresponding workflow UI mappers/types and documentation/examples so executions render consistent event sections and show dashboard metadata and output details.

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[superplanehq-integration]

👋 Commands for maintainers:

• /sp start - Start an ephemeral machine (takes ~30s)
• /sp stop - Stop a running machine (auto-executed on pr close)

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[WashingtonKK]

Screencast.from.2026-04-03.11-17-54.webm