AbstractPostgresIT gained clickHouseSearchIndex and agentRegistryService mocks in Phase 9.
All 14 alerting IT subclasses that re-declared the same @MockBean fields now fail with
"Duplicate mock definition". Removed the redundant declarations; per-class clickHouseLogStore
mock kept where needed. 120 alerting tests now pass (0 failures).
Also adds docs/alerting-02-verification.md (Task 43).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
