Richard
b7bee86ed7
#3 Strategy-drift alarm: fire + surface drift off the fingerprint history Turns the drift foundation into an actual alarm that protects copiers: - New AlertType.StrategyDrift (severity 3). - FingerprintSnapshotService.GetDriftedTradersAsync lists every master whose latest fingerprint drifted from its baseline. - AlertService.EvaluateStrategyDriftAsync (run from EvaluateAlertsAsync) fires a StrategyDrift alert per drifted master, summarizing the changed dimensions. Drift is slow-moving, so alerts are de-duplicated per trader over a 7-day cooldown via new IAlertRepository.ExistsRecentAsync. - UI: 📉 icon in the alert feed + a drift banner on the trader detail page (fetches /fingerprint-drift, lists the drifted dimensions). - Test: drift alert fires once then dedups within the cooldown. No schema change (reuses TraderFingerprintSnapshots + Alerts). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> @