style(startup): tidy console banner logs

Shorten the infostand background startup message into a compact asset summary and print the project/version/build details as a single ASCII startup card instead of several timestamped log lines. Add a small contract test for the compact infostand summary format.

Emulator/src/main/java/com/eu/habbo/Emulator.java

@@ -154,13 +154,7 @@ public final class Emulator {
             Emulator.config.register("camera.render.delay", "5");
             Emulator.config.register("hotel.timezone", java.time.ZoneId.systemDefault().getId());
             String hotelTimezoneId = Emulator.getConfig().getValue("hotel.timezone", java.time.ZoneId.systemDefault().getId());
-            System.out.println();
-            LOGGER.info("https://github.com/duckietm/Arcturus-Morningstar-Extended, ");
-            System.out.println();
-            LOGGER.info("This project is for educational purposes only. This Emulator is an open-source fork of Arcturus created by TheGeneral.");
-            LOGGER.info("Version: {}", version);
-            LOGGER.info("Build: {}", build);
-            LOGGER.info("Build Timestamp: {} [{}]", formatBuildTimestamp(buildTimestamp, hotelTimezoneId), hotelTimezoneId);
+            System.out.println(startupCard(hotelTimezoneId));
             Emulator.texts.register("camera.permission", "You don't have permission to use the camera!");
             Emulator.texts.register("camera.wait", "Please wait %seconds% seconds before making another picture.");
             Emulator.texts.register("camera.error.creation", "Failed to create your picture. *sadpanda*");
@@ -310,6 +304,18 @@ public final class Emulator {
         return -1L;
     }
 
+    static String startupCard(String hotelTimezoneId) {
+        return "\n" +
+                "+----------------------------------------------------------------+\n" +
+                "| Arcturus Morningstar Extended                                  |\n" +
+                "| Source : github.com/duckietm/Arcturus-Morningstar-Extended     |\n" +
+                "| Scope  : Educational open-source fork by TheGeneral            |\n" +
+                "| Version: " + version + "\n" +
+                "| Build  : " + build + "\n" +
+                "| Time   : " + formatBuildTimestamp(buildTimestamp, hotelTimezoneId) + " [" + hotelTimezoneId + "]\n" +
+                "+----------------------------------------------------------------+\n";
+    }
+
     private static String formatBuildTimestamp(long buildTimestamp, String timezoneId) {
         if (buildTimestamp <= 0) {
             return "UNKNOWN";

Emulator/src/main/java/com/eu/habbo/habbohotel/users/infostand/InfostandBackgroundManager.java

@@ -90,17 +90,23 @@ public class InfostandBackgroundManager {
         this.enforce = loaded > 0;
 
         if (this.enforce) {
-            LOGGER.info("InfostandBackgroundManager -> Loaded {} backgrounds, {} stands, {} overlays, {} cards, {} borders from infostand_backgrounds.",
+            LOGGER.info(summary(
                     this.entries.get(Category.BACKGROUND).size(),
                     this.entries.get(Category.STAND).size(),
                     this.entries.get(Category.OVERLAY).size(),
                     this.entries.get(Category.CARD).size(),
-                    this.entries.get(Category.BORDER).size());
+                    this.entries.get(Category.BORDER).size()));
         } else {
             LOGGER.info("InfostandBackgroundManager -> infostand_backgrounds is empty, server-side validation disabled (only range clamp will apply).");
         }
     }
 
+    static String summary(int backgrounds, int stands, int overlays, int cards, int borders) {
+        int total = backgrounds + stands + overlays + cards + borders;
+        return String.format("Infostand Background Manager -> Loaded! (%d assets: %d bg, %d stands, %d overlays, %d cards, %d borders)",
+                total, backgrounds, stands, overlays, cards, borders);
+    }
+
     public boolean canUse(Habbo habbo, Category category, int id) {
         if (id == 0) return true;
         if (!this.enforce) return true;

Emulator/src/test/java/com/eu/habbo/habbohotel/users/infostand/InfostandBackgroundManagerTest.java

@@ -0,0 +1,14 @@
+package com.eu.habbo.habbohotel.users.infostand;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class InfostandBackgroundManagerTest {
+    @Test
+    void summaryKeepsStartupLogCompact() {
+        assertEquals(
+                "Infostand Background Manager -> Loaded! (260 assets: 188 bg, 22 stands, 9 overlays, 16 cards, 25 borders)",
+                InfostandBackgroundManager.summary(188, 22, 9, 16, 25));
+    }
+}