Add creational patterns, Interpreter; remove scripts; update README

01-creational/builder/Main.java

@@ -0,0 +1,20 @@
+package builder;
+
+public class Main {
+    public static void main(String[] args) {
+        System.out.println("=== Builder Pattern Demo ===\n");
+
+        Director director = new Director();
+
+        House starter = director.buildStarter(new House.Builder());
+        System.out.println("Starter home : " + starter);
+
+        House luxury = director.buildLuxury(new House.Builder());
+        System.out.println("Luxury home  : " + luxury);
+
+        // Client builds a custom house directly without the Director
+        House custom = new House.Builder()
+                .rooms(4).floors(2).garden(true).roofType("mansard").build();
+        System.out.println("Custom home  : " + custom);
+    }
+}