Adds a latejoin radio announcement (#3569)

Co-authored-by: ike709 <sparebytes@protonmail.com>

Content.Server/GameTicking/GameTicker.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Collections.Immutable;
 using System.Diagnostics.CodeAnalysis;
+using System.Globalization;
 using System.Linq;
 using System.Reflection;
 using System.Threading;
@@ -897,6 +898,15 @@ namespace Content.Server.GameTicking
             var job = new Job(data.Mind, jobPrototype);
             data.Mind.AddRole(job);
 
+            if (lateJoin)
+            {
+                _chatManager.DispatchStationAnnouncement(Loc.GetString(
+                    "latejoin-arrival-announcement",
+                    ("character", character.Name),
+                    ("job", CultureInfo.CurrentCulture.TextInfo.ToTitleCase(job.Name))
+                    ));
+            }
+
             var mob = _spawnPlayerMob(job, character, lateJoin);
             data.Mind.TransferTo(mob);
 

Resources/Locale/en-US/centcomm.ftl

@@ -0,0 +1,3 @@
+### Automated Centcomm announcements
+
+latejoin-arrival-announcement = {$character} ({$job}) has arrived at the station!