Full revert of #79995 (tri-ai station trait). Partal revert of #81681 (human ai) (#84850)

#79995 removed the verb and secrets button for no reason. This means you
can no longer decide to do tri-ai in the lobby, you have to do it next
round or make players suffer thru another init cycle.

**__In general systems that require things be decided the previous round
are really fucking annoying and should be minimized to only specific
things that absolutely have to for technical reason.__**

This is not one of them.

I do not have the time to redesign the station trait to make use of the
existing admin code so this is a full revert instead.

If the station trait is re-added, it should be done so without removing
the secrets button or admin verb.

#81681 had an undocumented and un-atmoized change, in that it removed a
job related signal needlessly, that undocumented change has been
reverted because this system used that signal.

@Fikou 
@JohnFulpWillard 

(also cc @tralezab and @Ghommie as you merged the reverted prs)

code/modules/admin/verbs/secrets.dm

@@ -257,6 +257,11 @@ ADMIN_VERB(secrets, R_NONE, "Secrets", "Abuse harder than you ever have before w
 				return
 			holder.anon_names()
 			SSblackbox.record_feedback("nested tally", "admin_secrets_fun_used", 1, list("Anonymous Names"))
+		if("tripleAI")
+			if(!is_funmin)
+				return
+			holder.triple_ai()
+			SSblackbox.record_feedback("nested tally", "admin_secrets_fun_used", 1, list("Triple AI"))
 		if("onlyone")
 			if(!is_funmin)
 				return