- Media (voice/video/image/file): private bucket, presigned PUT upload,
reference-only publish, membership-gated presigned GET for viewing
- Avatars: public bucket, presigned PUT + direct public URL, profile.update event
- messages.media_key + media_meta (migration 1720000000005_media)
- Explicit MinIO region on presigning client (avoids getBucketRegion network call)
- Event type values sourced from EventType constants (no raw string literals)
- Web: attach button, MediaView renderer, avatar upload in topbar
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BFRyKxkKEjfAgpXygzoNiD
