Add media-storage-bytes-per-team quote to prevent persistent DoS via
repeated uploads. The quota sums storage_object sizes from both
file_media_object (media + thumbnails) and team_font_variant
(otf/ttf/woff1/woff2). Default limit is 20 GiB per team, configurable
via PENPOT_QUOTES_MEDIA_STORAGE_BYTES_PER_TEAM.
The check is invoked in upload-file-media-object before processing,
looking up the team-id via file -> project -> team_id join.
AI-assisted-by: mimo-v2.5-pro
158fa39156