Fix incompatible (int) cast on boxed Double in Quick Start code

[Copilot]

The smoke test CI job (JDK 25) was failing because the Quick Start code casts Double (boxed) return values from SessionUsageInfoEventData using (int), which only works for primitive double.

[ERROR] incompatible types: java.lang.Double cannot be converted to int

Changes

• README.md / jbang-example.java: Replace illegal (int) casts with .intValue() on the three SessionUsageInfoEventData accessors (currentTokens(), tokenLimit(), messagesLength()):

// Before (compile error with boxed Double)
System.out.println("Current tokens: " + (int) data.currentTokens());

// After
System.out.println("Current tokens: " + data.currentTokens().intValue());

Pull request checklist

• Tests for the changes have been added (for bug fixes / features)
• Docs have been reviewed and added / updated if needed (for bug fixes / features)
• mvn spotless:apply has been run to format the code
• mvn clean verify passes locally

Does this introduce a breaking change?

• Yes
• No

[Copilot]

Pull request overview

Fixes a JDK 25 compilation failure in the repository’s Quick Start examples by updating how usage metrics (boxed Double values) are converted to integers for display.

Changes:

• Replace illegal (int) casts on Double values with .intValue() for currentTokens(), tokenLimit(), and messagesLength() in example code.
• Apply the same fix consistently in both the README Quick Start snippet and the JBang example.

Show a summary per file

File	Description
jbang-example.java	Updates usage-metrics printing to use Double.intValue() instead of an invalid cast.
README.md	Updates the Quick Start snippet to use Double.intValue() for usage metrics, fixing compilation on newer JDKs.

Copilot's findings

• Files reviewed: 2/2 changed files
• Comments generated: 0