Qdels queries, adds sleep safety checks, DBcore checks for leaks (#38363)

* Qdels all queries, adds sleep handling

* DB Core messages admins about undeleted queries

* Compile fixes. Adds missing set waitfor

* Remove world/New shennanigans. Add DBQuery/BlockingExecute()

* Less spammy notifications to admins about undeleted queries

* Increase dbcore fire time to 1 minute

* Upgrade undeleted query warning

* Better place of death

* Fix build

* Remove BlockingExecute, see BSQL PR for why

* Yep, missed that one.

* Psyche, that's the WRONG QUERY!!

code/modules/client/verbs/ooc.dm

@@ -22,6 +22,8 @@
 	if(jobban_isbanned(src.mob, "OOC"))
 		to_chat(src, "<span class='danger'>You have been banned from OOC.</span>")
 		return
+	if(QDELETED(src))
+		return
 
 	msg = copytext(sanitize(msg), 1, MAX_MESSAGE_LEN)
 	var/raw_msg = msg