[lukepolo]

A practice save that could not reach the panel told the player it would retry, and nothing retried it until a later save happened to get through.

• Held saves and results are tried again every 10 seconds, with an attempt cap, and a retry keeps its id so it can't make a second lineup or count a throw twice.
• A refused save leaves the queue and tells the player, instead of blocking everything behind it.
• A retried save gets its panel id back and returns to the library if a refresh dropped it.
• .delete now names the player, so it works, finds a row a push swapped in, withdraws held saves and moves a running drill on.
• A save names its map and workshop id, the session reports the workshop id, and a save never sent stays here if the map moved.
• A panel push updates a walk in place and removes deleted lineups from a drill, instead of resetting the walk.

https://github.com/DEAFCS/game-server/commit/baf0911b