fix: Fix test stability issues

page-controller/src/main/java/com/iluwatar/page/controller/App.java

@@ -44,6 +44,11 @@ public class App {
    * @param args command line args
    */
   public static void main(final String[] args) {
-    SpringApplication.run(App.class, args);
+    var context = SpringApplication.run(App.class, args);
+    if (args.length > 0 && "test".equals(args[0])) {
+      // Close the context immediately during tests to prevent Tomcat/background threads from
+      // hanging the JVM
+      context.close();
+    }
   }
 }

page-controller/src/test/java/com/iluwatar/page/controller/AppTest.java

@@ -32,6 +32,6 @@ import org.junit.jupiter.api.Test;
 public class AppTest {
   @Test
   void shouldExecuteApplicationWithoutException() {
-    assertDoesNotThrow(() -> App.main(new String[] {}));
+    assertDoesNotThrow(() -> App.main(new String[] {"test"}));
   }
 }