TRACK: Usage data ping for new "hard" design delete

About

#38048 is introducing a new "hard" delete of designs, and renames what is (at time of writing) called delete to instead be an "archive" of designs.

We will need a new usage data ping for this "hard" delete of designs.

Proposal

The new usage data ping will use the key hard_delete. This is based on this discussion #38048 (comment 334759010).