Release Discord Announcement Skill

Write the Discord release announcement for the stable Paperclip release.

This is the companion to .agents/skills/release-changelog/SKILL.md. That skill generates the file at releases/vYYYY.MDD.P.md. This skill turns that file into a single copy-pasteable Discord block, in dotta's voice, and posts it as the discord_announcement document on the release issue.

What dotta said

This is for discord — try to follow my format. If I have a section where I think about the future, pull from recent issues we're working on etc.

The Discord announcement is not the changelog. The changelog is exhaustive; the announcement is opinionated, in-voice, and built around the same handful of shipped highlights plus a real "what's next" + "what's on my mind" pulled from current Paperclip work — not invented.