Fix (int) cast incompatibility with boxed Double in Quick Start code

Agent-Logs-Url: https://github.com/github/copilot-sdk-java/sessions/51184227-fc7a-4a39-9032-b9b3da932569

Co-authored-by: edburns <75821+edburns@users.noreply.github.com>

Author: Copilot

README.md

@@ -103,9 +103,9 @@ public class CopilotSDK {
             session.on(SessionUsageInfoEvent.class, usage -> {
                 var data = usage.getData();
                 System.out.println("\n--- Usage Metrics ---");
-                System.out.println("Current tokens: " + (int) data.currentTokens());
-                System.out.println("Token limit: " + (int) data.tokenLimit());
-                System.out.println("Messages count: " + (int) data.messagesLength());
+                System.out.println("Current tokens: " + data.currentTokens().intValue());
+                System.out.println("Token limit: " + data.tokenLimit().intValue());
+                System.out.println("Messages count: " + data.messagesLength().intValue());
             });
 
             // Send a message

jbang-example.java

@@ -28,9 +28,9 @@ public static void main(String[] args) throws Exception {
             session.on(SessionUsageInfoEvent.class, usage -> {
                 var data = usage.getData();
                 out.println("\n--- Usage Metrics ---");
-                out.println("Current tokens: " + (int) data.currentTokens());
-                out.println("Token limit: " + (int) data.tokenLimit());
-                out.println("Messages count: " + (int) data.messagesLength());
+                out.println("Current tokens: " + data.currentTokens().intValue());
+                out.println("Token limit: " + data.tokenLimit().intValue());
+                out.println("Messages count: " + data.messagesLength().intValue());
             });
 
             // Send a message