Timezone bug in orders test traced by narrating debugging aloud and transcribing the recording

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A developer's Node service test checking orders created today passed in CI but failed for anyone running it after about 4 p.m. Pacific. Unable to locate the cause after forty minutes, they recorded themselves thinking aloud, using spoken marker words like hypothesis, ruled out, note and fix. Transcribing the recording in the browser captured the moment they realized the day boundary was computed in UTC while the query used local time, since 4 p.m. Pacific equals midnight UTC. The transcript needed manual correction of code identifiers, which took about three minutes. The author then used a short Python script to extract marker-tagged sentences into a draft bug report.

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