pr-description

Write a short, visual, evidence-backed GitHub PR description and open or update the PR with it. Use whenever the user asks to open a PR, write or rewrite a PR description, 'describe this change', or run gh pr create — even if they don't say 'description'. Gathers real proof first (screenshots for UI, terminal transcripts for CLI, ascii before/after for data shapes), then writes prose that captions the evidence. Do…