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/note.py

@@ -0,0 +1,26 @@
+from sqlalchemy import Boolean, Column, DateTime, ForeignKey, Index, Integer, String, Text, UniqueConstraint
+from sqlalchemy.orm import relationship
+from sqlalchemy.sql import func
+
+from app.database import Base
+
+
+class BillNote(Base):
+    __tablename__ = "bill_notes"
+
+    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)
+    content = Column(Text, nullable=False)
+    pinned = Column(Boolean, nullable=False, default=False)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
+
+    user = relationship("User", back_populates="bill_notes")
+    bill = relationship("Bill", back_populates="notes")
+
+    __table_args__ = (
+        UniqueConstraint("user_id", "bill_id", name="uq_bill_notes_user_bill"),
+        Index("ix_bill_notes_user_id", "user_id"),
+        Index("ix_bill_notes_bill_id", "bill_id"),
+    )