Show why you were disconnected in the main menu; reset-world / reload-save make all players reconnect automatically

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

GameServer.cs

@@ -138,7 +138,12 @@ public sealed class GameServer
             Thread.Sleep(2);
         }
 
-        foreach (var c in clients.Values) c.Conn.Close("Server shutting down");
+        foreach (var c in clients.Values)
+        {
+            // Grund mitschicken: die Spieler sehen ihn im Hauptmenü
+            if (c.State == ClientState.Joined) c.Conn.Send(MsgType.Reject, Wire.Build(w => w.Write("The server was shut down.")));
+            c.Conn.Close("Server shutting down");
+        }
         listener.Stop();
         SaveWorld();
         if (!offline)
@@ -457,6 +462,22 @@ public sealed class GameServer
     }
 
     /// <summary>Chatnachricht vom Server an alle (Absender-ID 0 = "Server").</summary>
+    /// <summary>
+    /// Alle Spieler neu verbinden lassen (nach reset-world / reload-save): sie sehen die Meldung, gehen kurz ins Menü
+    /// und laden dann den neuen Stand. Sonst liefen sie mit der alten Welt weiter.
+    /// </summary>
+    void ReconnectAll(string message)
+    {
+        int count = 0;
+        foreach (var c in clients.Values.Where(x => x.State == ClientState.Joined).ToList())
+        {
+            c.Conn.Send(MsgType.Reconnect, Wire.Build(w => w.Write(message)));
+            c.Conn.Close("Reconnect after world change");
+            count++;
+        }
+        if (count > 0) Log($"{count} player(s) will reconnect");
+    }
+
     string Unban(string id, string by)
     {
         id = (id ?? "").Trim();
@@ -576,9 +597,10 @@ public sealed class GameServer
                     world.Reset();
                     SaveWorld();
                     Log("World state reset - new players get the plain save game again.");
+                    ReconnectAll("The world is being reset - reconnecting...");
                     break;
                 case "reload-save":
-                    LoadSave();
+                    if (LoadSave()) ReconnectAll("The server loaded a new save game - reconnecting...");
                     break;
                 case "stop":
                 case "quit":