Show HN: Skill to generate change preview pages

To review diffs more easily, I created a `/change-preview` skill to generate a page that combines the following: - Before/After screenshots and/or videos - Diagrams if no screenshots applicable - Annotations on the screenshots of things that have changed in the UI - Code diffs alongside AI summaries of why that code was changed - Steps to reproduce if I want to test changes manually

Now I can run a few agents in parallel, get them to spin up a change preview page once done, and verify it's done the right thing by having the diff, before/after videos, etc. all in one place.

Brief demo here: https://steveharrison.dev/reviewing-ai-work-with-change-prev...