Onboarding Analytics

[nrodd]

Summary

• Adds a Workflow Telemetry section to the onboard skill defining analytics event conventions: step names, outcome
  enums, metadata field rules, and outcome classification
• Introduces a telemetry consent prompt at the start of the workflow using AskUserQuestion, with all subsequent
  telemetry calls conditional on user approval
• Adds workflow-event telemetry calls at each milestone: start, explore, sightmap, etc

Test plan

• Run the onboard workflow end-to-end and verify the consent prompt appears before any telemetry
• Confirm that selecting "No thanks" suppresses all workflow-event calls
• Confirm that selecting "Yes, share anonymously" logs events at each step with correct metadata
• Verify metadata field values match the defined enums (flow_type, sightmap_quality, use_case, outcome)