feat: PocketVeto v1.0.0 — initial public release

Self-hosted US Congress monitoring platform with AI policy briefs,
bill/member/topic follows, ntfy + RSS + email notifications,
alignment scoring, collections, and draft-letter generator.

Authored by: Jack Levy

backend/app/models/notification.py

@@ -0,0 +1,27 @@
+from sqlalchemy import Column, DateTime, ForeignKey, Index, Integer, String
+from sqlalchemy.dialects.postgresql import JSONB
+from sqlalchemy.orm import relationship
+from sqlalchemy.sql import func
+
+from app.database import Base
+
+
+class NotificationEvent(Base):
+    __tablename__ = "notification_events"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    user_id = Column(Integer, ForeignKey("users.id", ondelete="CASCADE"), nullable=False)
+    bill_id = Column(String, ForeignKey("bills.bill_id", ondelete="CASCADE"), nullable=False)
+    # new_document | new_amendment | bill_updated
+    event_type = Column(String(50), nullable=False)
+    # {bill_title, bill_label, brief_summary, bill_url}
+    payload = Column(JSONB)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    dispatched_at = Column(DateTime(timezone=True), nullable=True)
+
+    user = relationship("User", back_populates="notification_events")
+
+    __table_args__ = (
+        Index("ix_notification_events_user_id", "user_id"),
+        Index("ix_notification_events_dispatched_at", "dispatched_at"),
+    )