🧪 [testing improvement] Add error path tests for WebSocketHelper and fix CI type errors

[sebamar88]

🎯 What: Added tests for missing error paths in WebSocketHelper and fixed CI type errors in CLI and CryptoUtils.
📊 Coverage:

• Registered multiple handlers and verified that if one throws an error, subsequent handlers are still executed.
• Threw a non-Error value (a string) from a handler and verified that it is correctly wrapped into an Error object by notifyError.
• Fixed type mismatch in src/cli/index.ts by ensuring url is passed as a non-nullable string.
• Fixed type mismatch in src/utils/helpers/CryptoUtils.ts by casting Uint8Array to BufferSource for crypto.subtle.importKey.
  ✨ Result: Improved reliability, coverage, and build stability.

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PR created automatically by Jules for task 10745326257403051512 started by @sebamar88

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[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Scanned Files

None

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud