Largest Cluster B test: seeded 10 executions via the legacy RouteExecution
shape which ChunkIngestionController silently degenerates to empty chunks,
then verified via a Postgres SELECT against a ClickHouse table. Both
failure modes addressed:
- All 10 seed payloads are now ExecutionChunk envelopes (chunkSeq=0,
final=true, flat processors[]).
- Pipeline visibility probe is the env-scoped search REST endpoint
(polling for the last corr-page-10 row).
- searchGet() helper was using the AGENT token; env-scoped read
endpoints require VIEWER+, so it now uses viewerJwt (matches what
searchPost already did).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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