feat: version string tied to project version + "Extended" title

The :about / :info hotel-info title was hardcoded ("Arcturus Morningstar
4.1.0") and drifted from the real build. Now Emulator.version reads the
jar manifest's Implementation-Version (= ${project.version}, added via the
assembly plugin) and falls back to MAJOR.MINOR.BUILD only outside a jar.
Title becomes "Arcturus Morningstar Extended <version>" (e.g. 4.2.24).

Emulator/pom.xml

@@ -38,6 +38,7 @@
                     <archive>
                         <manifest>
                             <mainClass>com.eu.habbo.Emulator</mainClass>
+                            <addDefaultImplementationEntries>true</addDefaultImplementationEntries>
                         </manifest>
                     </archive>
                 </configuration>

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

@@ -39,12 +39,23 @@ public final class Emulator {
     private static final String OS_NAME = (System.getProperty("os.name") != null ? System.getProperty("os.name") : "Unknown");
     private static final String CLASS_PATH = (System.getProperty("java.class.path") != null ? System.getProperty("java.class.path") : "Unknown");
 
+    // Fallback version, only used when running outside a packaged jar (e.g. from
+    // the IDE). In production the version comes from the jar manifest below.
     public final static int MAJOR = 4;
     public final static int MINOR = 1;
     public final static int BUILD = 0;
     public final static String PREVIEW = "";
 
-    public static final String version = "Arcturus Morningstar" + " " + MAJOR + "." + MINOR + "." + BUILD + " " + PREVIEW;
+    // Tied to the Maven project version: read from the jar manifest
+    // (Implementation-Version = ${project.version}, see pom assembly plugin).
+    private static String resolveVersionNumber() {
+        String implementation = Emulator.class.getPackage().getImplementationVersion();
+        if (implementation != null && !implementation.isEmpty()) return implementation;
+        String fallback = MAJOR + "." + MINOR + "." + BUILD;
+        return PREVIEW.isEmpty() ? fallback : fallback + " " + PREVIEW;
+    }
+
+    public static final String version = "Arcturus Morningstar Extended " + resolveVersionNumber();
     private static final String logo =
             "\n" +
                     "███╗   ███╗ ██████╗ ██████╗ ███╗   ██╗██╗███╗   ██╗ ██████╗ ███████╗████████╗ █████╗ ██████╗ \n" +