Pull Request Overview

This PR improves test reliability by ensuring background worker goroutines are properly stopped when a test fails or completes. The change replaces a channel-based shutdown mechanism with an atomic boolean flag and adds a test cleanup function to guarantee worker termination.

• Replaces channel-based worker shutdown with atomic boolean for cleaner control flow
• Adds t.Cleanup() to ensure workers stop even if test fails early
• Simplifies worker loop structure by removing select statement

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