[Fix] 020-twilio-media-streams-node — test fails: Cannot read properties of null (reading 'toString')

[lukeocodes]

Test failure

The test for examples/020-twilio-media-streams-node is failing with:

✗ Test failed: Cannot read properties of null (reading 'toString')

Discovered by: test-existing run 23719689574 on 2026-03-29

This example was merged before the E2E gate existed and its test has never cleanly passed. The fix agent should investigate the tests/test.js WebSocket flow and fix the null dereference.

Likely cause: the Deepgram WebSocket connection is returning null before .toString() is called — possibly in the audio conversion or message handling path.

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Raised automatically during E2E audit

[lukeocodes]

Fixed in PR #56 — Twilio test now handles missing ffmpeg and null stderr. Closing.