feat(kora): KR-ALERT-NOTIFY ST1 — push alerts to Joshua via Slack DM + email

kora_cli/alerts/__init__.py

@@ -1,16 +1,33 @@
-"""Alert aggregation — KR-ALERTS-PANEL-FLIP.
+"""Alert aggregation + push-notification surface.
 
-Aggregates operator-attention signals from the 5 existing data
-sources (OperationalStateHolder + cost-ladder holder + HealthRollup
-+ audit JSONL + heartbeat probe snapshots) into the FE's
-``Alert`` shape from ``web/src/lib/api.ts``.
+Aggregator (KR-ALERTS-PANEL-FLIP): operator-attention signals
+from the 5 data sources (OperationalStateHolder + cost-ladder
+holder + HealthRollup + audit JSONL + heartbeat probe snapshots)
+projected to the FE's ``Alert`` shape from ``web/src/lib/api.ts``.
+
+Notifier (KR-ALERT-NOTIFY): periodic task that diffs the active
+alert set + pushes newly-firing alerts to Joshua via Slack DM
+(critical / warning) or email (info).
 
 Public surface:
   * :class:`Alert` — wire-shape dataclass mirroring the TS interface
   * :func:`compute_active_alerts` — single-call aggregator the
     endpoint consumes
+  * :class:`AlertNotifier` + :class:`NotificationCycleResult` +
+    :class:`DispatchOutcome` — push-notification surface
 """
 
 from kora_cli.alerts.aggregator import Alert, compute_active_alerts
+from kora_cli.alerts.notifier import (
+    AlertNotifier,
+    DispatchOutcome,
+    NotificationCycleResult,
+)
 
-__all__ = ["Alert", "compute_active_alerts"]
+__all__ = [
+    "Alert",
+    "AlertNotifier",
+    "DispatchOutcome",
+    "NotificationCycleResult",
+    "compute_active_alerts",
+]