- Migration 0007: note_attachments (path/mime/size). Upload POST /api/notes/<id>/attachments (multipart, png/jpeg/gif/webp, 12MB cap via MAX_CONTENT_LENGTH) stored under Config.media_root() (first use of DATA_DIR); owner/ACL-scoped GET serves the file (nosniff); DELETE removes row + file. Note responses include attachments[]. - Frontend: notes store uploadAttachment (FormData)/deleteAttachment; editor image button + paste-to-upload + thumbnail grid with remove; card shows the first image as a cover. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01FRgehjoz7Yv8LkUfADxACm