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/models/notification_delivery.py

@@ -0,0 +1,30 @@
+from __future__ import annotations
+
+import uuid
+from datetime import datetime
+
+from sqlalchemy import DateTime, Enum, ForeignKey, Integer, String, Text
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.db.base import Base, TimestampMixin, UUIDPrimaryKeyMixin
+from app.models.enums import NotificationDeliveryStatus
+
+
+class NotificationDelivery(Base, UUIDPrimaryKeyMixin, TimestampMixin):
+    __tablename__ = "notification_deliveries"
+
+    alert_id: Mapped[uuid.UUID] = mapped_column(
+        ForeignKey("alerts.id", ondelete="CASCADE"), index=True
+    )
+    destination_id: Mapped[uuid.UUID] = mapped_column(
+        ForeignKey("notification_destinations.id", ondelete="CASCADE"), index=True
+    )
+    provider: Mapped[str] = mapped_column(String(50))
+    status: Mapped[NotificationDeliveryStatus] = mapped_column(
+        Enum(NotificationDeliveryStatus, native_enum=False, length=20),
+        default=NotificationDeliveryStatus.PENDING,
+    )
+    attempt_count: Mapped[int] = mapped_column(Integer, default=0)
+    last_attempt: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
+    external_message_id: Mapped[str | None] = mapped_column(String(255), nullable=True)
+    error_message: Mapped[str | None] = mapped_column(Text, nullable=True)