Adds widgets and header/background theme mods, integer galleryIds,
wider pre-filter, regex failures as possible usages, newest-first
candidates, and usages_complete/usages_truncated in media-get.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7
Usage search distinguishes certain (ID referenced) and possible (file URL
only) usages, hides titles the user cannot read, and keeps queries bounded.
MediaGuard checks per-attachment capabilities and refuses trashed media
unless the caller opts in.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7