fix (iworker): handle empty payload and ignore EOF error in parser write

[cfc4n]

This pull request introduces improvements to the eventWorker logic in pkg/event_processor/iworker.go, focusing on error handling and code robustness. The most notable changes include refining how parser errors are handled, preventing unnecessary processing of empty payloads, and updating imports for new error checks.

Error handling and robustness improvements:

• Updated the error check in parserEvents to ignore io.EOF errors, logging only other errors for better clarity and reduced noise.
• Added a guard in the Display method to prevent processing when the payload is empty, improving efficiency and avoiding potential issues.

Code maintenance:

• Imported the io package to support the new error handling logic.

fix #896

[Copilot]

Pull request overview

This pull request improves error handling and robustness in the event worker by filtering out expected io.EOF errors and adding an early return for empty payloads to prevent unnecessary processing.

• Added io.EOF error filtering in parser write operations to reduce log noise from expected end-of-stream conditions
• Introduced empty payload guard in Display() method to optimize performance and prevent processing when no data is present
• Added io package import to support the enhanced error handling logic

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[github-actions]

✅ E2E Test Results: PASSED

Test Run: #20003714324

Tests Executed:

• TLS/OpenSSL Module (curl → github.com)
• GnuTLS Module (wget/curl → github.com)
• GoTLS Module (Go client → github.com)

✅ All e2e tests passed successfully! The TLS capture functionality is working correctly.

---

Automated e2e test results for commit 4786e69

[github-actions]

🔧 Debug Build Complete (PR #897)

📦 Download Links:

• View Build Artifacts

⏰ Files will be retained for 7 days, please download and test promptly.

---

This build includes debug binaries for: android/linux (arm64/amd64)

[github-actions]

✅ E2E Test Results: PASSED

Test Run: #20003778757

Tests Executed:

• TLS/OpenSSL Module (curl → github.com)
• GnuTLS Module (wget/curl → github.com)
• GoTLS Module (Go client → github.com)

✅ All e2e tests passed successfully! The TLS capture functionality is working correctly.

---

Automated e2e test results for commit 5da70ba

[github-actions]

🔧 Debug Build Complete (PR #897)

📦 Download Links:

• View Build Artifacts

⏰ Files will be retained for 7 days, please download and test promptly.

---

This build includes debug binaries for: android/linux (arm64/amd64)