feat: implement page/post duplication, add event layout, auto-extract featured images, and include HTML escaping for templates.

sisvietnamvn_main/CheckPosts.java

@@ -0,0 +1,19 @@
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.Statement;
+
+public class CheckPosts {
+    public static void main(String[] args) {
+        try {
+            Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521/sisvietnam", "sisvietnam", "sisvietnam");
+            Statement stmt = conn.createStatement();
+            ResultSet rs = stmt.executeQuery("SELECT id, slug, featured_image FROM sis_post WHERE featured_image IS NOT NULL");
+            while (rs.next()) {
+                System.out.println("ID: " + rs.getLong("id") + " Slug: " + rs.getString("slug") + " IMG: " + rs.getString("featured_image"));
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}