- PromotionService::publicTags() is called on every Release render incl. the 5s
page poll; the anonymous GitHub tag API is rate-limited (60/h per IP). Cache it
120s so the panel never gets rate-limited to empty. (Test flushes cache in setUp.)
- yank.yml: replace the loose shell-glob tag guard with an anchored grep regex so
a garbage/space/metachar tag dispatched straight from the GitHub UI is rejected
before reaching git push --delete (the panel already validates tag ∈ publicTags).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>