feat: Add Insights support with get-features and call-tool/read-resource methods

[Steve-Mcl]

Description

Adds forge -> driver passthrough functions to support Insights operations get MCP features, call MCP tool, read MCP resource.

Related Issue(s)

closes #209

Checklist

• I have read the contribution guidelines
• Suitable unit/system level tests have been added and they pass
• Documentation has been updated
  • Upgrade instructions
  • Configuration details
  • Concepts
• Changes flowforge.yml?
  • Issue/PR raised on FlowFuse/helm to update ConfigMap Template
  • Issue/PR raised on FlowFuse/CloudProject to update values for Staging/Production
• Link to Changelog Entry PR, or note why one is not needed.

Labels

• Includes a DB migration? -> add the area:migration label

[Steve-Mcl]

For reference:

getMCPFeatures

• is called from the forge app as app.containers.getMCPFeatures(instance, instanceWithMCPServers.mcpServers) see code in PR 7604
• and this drivers handler forwards this to the launcher here as part of PR 571

callMCPTool

• is called from the forge app as commandMethod(instance, endpoint, ...commandData) see code in PR 7604
• and this drivers handler forwards this to the launcher here as part of PR 571

readMCPResource

• is called from the forge app as commandMethod(instance, endpoint, ...commandData) see code in PR 7604
• and this drivers handler forwards this to the launcher here as part of PR 571

[hardillb]

Only looked at the endpoint URL selection, looks ok