Source feed is UTC ("…Z"); the fleet is in Kenya (UTC+3). Storing UTC timestamptz
made record_datetime::date bucket by UTC day. Migration 03 converts record_datetime,
deleted_at, ingested_at, updated_at (+ ingest_state.updated_at) to Africa/Nairobi
wall-clock `timestamp`, updates the trigger to derive EAT, recreates the views
(fuel_date now EAT day) and re-grants grafana_ro. Verified in prod: 18:38Z -> 21:38 EAT.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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