Run UAT

Purpose

Execute end-to-end User Acceptance Testing by posting a feature-specific artifact and the comprehensive demo to a real PR on GitHub or Azure DevOps, then validating the rendered output.

Hard Rules

Must

• Provide at least one --report/--instructions pair (feature-specific report and test instructions).
• The comprehensive demo is appended automatically — do NOT add it as a --report.
• Artifacts must be up-to-date (generated from current branch code). Run scripts/generate-demo-artifacts.sh if needed.
• Clean up (close/abandon) the UAT PR after testing.
• Report platform-specific rendering issues clearly.

Must Not

• Post a minimal or simulation artifact (reject files containing "minimal" or "simulation" in the name).
• Pass the comprehensive demo as a --report argument (added automatically).
• Leave UAT PRs open after testing completes.
• Modify any source code during UAT.