pm on WB published to Kafka topic "pm" (stale .env mounted via subPath),
while message-hub consumes "message-hub-prod". PDF export of KSG hung in
PENDING because get_converted_file never reached message-hub.
Set KAFKA_TOPICS explicitly in backend and celery so env overrides .env,
same as prod, d8-ugmk-prod, uralkal and vad.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01173KBT2kTwhxrzr2t3KutB