added shutdown command and improved error logging for shutdown sequence

Server/src/main/java/core/game/system/SystemTermination.java

@@ -78,8 +78,8 @@ public final class SystemTermination {
 						}
 					});
 				}
-			} catch (Throwable t) {
+			} catch (Exception e) {
-				t.printStackTrace();
+				e.printStackTrace();
 			}
 		}
 //		ServerStore.dump(directory + "store/");

Server/src/main/kotlin/rs09/game/system/command/sets/SystemCommandSet.kt

@@ -233,5 +233,9 @@ class SystemCommandSet : CommandSet(Command.Privilege.ADMIN) {
             player.inventory.add(Item(Items.ROTTEN_POTATO_5733))
         }
 
+        define("shutdown",Command.Privilege.ADMIN) { player, _ ->
+            SystemManager.flag(SystemState.TERMINATED)
+        }
+
     }
 }