NOTE: T299925 covers the notification itself. This ticket covers writing a script to send the notifications.
Write a maint script in the [[ https://phabricator.wikimedia.org/T299924 | new image suggestions notifications extension ]] that sends image suggestions notifications to experienced users.
Image suggestions for unillustrated articles can be read from hdfs (see T299789, using `commonswiki_file` to get confidence scores) or Cassandra (T299885 ... possibly via an API)
Acceptance Criteria:
[] Each user with >500 edits will get at most **one** notification a week, where the notification
[] is about a image suggestion for an unillustrated article on the user's watchlist
[] where the confidence score of the suggestion is above **TBD**%
[] is **not** about an article that the user has previously received an image suggestion notification for
[] prioritising articles this user has edited in the last 30 days (if possible, see T292312), otherwise ordered randomly