Exercise classified health snapshots through the real alert manager: unchanged and count-only changes stay quiet, new failure classes dispatch, recovery clears, and the same cause starts a new incident. Assert synchronous dispatch timestamps rather than timing asynchronous callbacks. The fingerprint-removal control fails on count drift; restored lifecycle and ordering tests pass 100 race-enabled repetitions.
Change-source: pulse-maintainer
Contract-Neutral: Test-only coverage of existing delivery-warning projection and alert lifecycle semantics; no runtime, public API or product surface changes.
pulse-triage[bot]
4af5d5216e