Design for closing the 12 parked IT failures (ClickHouseStatsStoreIT
timezone, SSE flakiness in AgentSseControllerIT/SseSigningIT) plus two
production-code side notes the ExecutionController removal surfaced:
- ClickHouseStatsStore timezone fix — column-level DateTime('UTC') on
bucket, greenfield CH
- SSE flakiness — diagnose-then-fix with user checkpoint between phases
- MetricsFlushScheduler property-key fix — bind via SpEL, single source
of truth in IngestionConfig
- Dead-code cleanup — SearchIndexer.onExecutionUpdated listener +
unused TaggedExecution record
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
6c1cbc289c