Add test for specific user DCA stats retrieval

Introduce a new test method `testSpecificUserAdhoc` in JupiterTest.java, which retrieves and logs DCA statistics for a specific user using the JupiterManager. This enhances test coverage by validating the statistics retrieval functionality for individual users.

jupiter/src/test/java/JupiterTest.java

@@ -583,6 +583,14 @@ public void testGetRecentDcaOrders() {
         log.info("Recent DCA Orders [{}]: {}", recentDcaOrders.size(), recentDcaOrders);
     }
 
+    @Test
+    public void testSpecificUserAdhoc() {
+        JupiterManager manager = new JupiterManager(client);
+        var stats = manager.getUserDcaStatistics(new PublicKey("F4KpkufKgrPD5j1JaDTpvTb36cGHBYUnXtmGgnsVHRkB"));
+
+        log.info("Stats F4KpkufKgrPD5j1JaDTpvTb36cGHBYUnXtmGgnsVHRkB: {}", stats.toString());
+    }
+
     @Test
     public void testGetActiveDcaOrders() {
         JupiterManager manager = new JupiterManager(client);