Initial commit: CI Agent competitive-intelligence monitoring app

FastAPI + Celery + Next.js + Postgres/Redis app with company monitoring,
source collection, LLM-based change analysis, enrichment, and account
security (Turnstile, escalating lockout, email verification).

apps/api/app/repositories/notification_delivery_repository.py

@@ -0,0 +1,24 @@
+from __future__ import annotations
+
+import uuid
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.models.notification_delivery import NotificationDelivery
+
+
+class NotificationDeliveryRepository:
+    def __init__(self, db: AsyncSession) -> None:
+        self.db = db
+
+    async def create(self, delivery: NotificationDelivery) -> NotificationDelivery:
+        self.db.add(delivery)
+        await self.db.flush()
+        return delivery
+
+    async def list_for_alert(self, alert_id: uuid.UUID) -> list[NotificationDelivery]:
+        result = await self.db.execute(
+            select(NotificationDelivery).where(NotificationDelivery.alert_id == alert_id)
+        )
+        return list(result.scalars().all())