feat: Step 1 Auth complete - Token generation and email loop verified

backend/app/models/identity.py

@@ -69,4 +69,16 @@ class Wallet(Base):
     coin_balance = Column(Numeric(18, 2), default=0.00)
     xp_balance = Column(Integer, default=0)
     
-    user = relationship("User", back_populates="wallet")
+    user = relationship("User", back_populates="wallet")
+
+class VerificationToken(Base):
+    __tablename__ = "verification_tokens"
+    __table_args__ = {"schema": "data"}
+
+    id = Column(Integer, primary_key=True, index=True)
+    token = Column(UUID(as_uuid=True), default=uuid.uuid4, unique=True, nullable=False)
+    user_id = Column(Integer, ForeignKey("data.users.id", ondelete="CASCADE"), nullable=False)
+    token_type = Column(String(20), nullable=False) # 'registration' or 'password_reset'
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    expires_at = Column(DateTime(timezone=True), nullable=False)
+    is_used = Column(Boolean, default=False)