[Fix #3228] idle-timeout not working in cluster mode (#3235)

[MitchLewis930]

PR_057

[Copilot]

Pull request overview

This PR fixes the idle-timeout functionality in cluster mode by ensuring the master process is terminated when idle timeout is reached in worker processes.

Changes:

• Added idle_timeout_reached flag tracking to the Server class
• Modified worker shutdown logic to signal master process termination on idle timeout
• Added integration tests for both single and cluster modes to verify idle timeout behavior

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
lib/puma/server.rb	Added idle_timeout_reached attribute and flag setting logic when idle timeout occurs
lib/puma/cluster/worker.rb	Added logic to send SIGTERM to master process when worker detects idle timeout
test/test_integration_single.rb	Added test case to verify idle timeout works in single mode
test/test_integration_cluster.rb	Added test case to verify idle timeout works in cluster mode
lib/puma/runner.rb	Fixed typo in comment from "aand" to "and"

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