Initial commit: AutonetSellCar platform with deployment system

- Frontend: Next.js 14 with TypeScript
- Backend: FastAPI with SQLAlchemy
- Agent: Carmodoo sync agent
- Deployment: Docker Compose based staging/production setup
- Scripts: Automated deployment with rollback support

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/app/models/referral.py

@@ -0,0 +1,37 @@
+from sqlalchemy import Column, Integer, String, Float, DateTime, ForeignKey
+from sqlalchemy.orm import relationship
+from sqlalchemy.sql import func
+from ..database import Base
+
+
+class ReferralReward(Base):
+    """레퍼럴 보상 모델"""
+    __tablename__ = "referral_rewards"
+
+    id = Column(Integer, primary_key=True, index=True)
+
+    # 추천인 (보상 받는 사람)
+    referrer_id = Column(Integer, ForeignKey("users.id"), nullable=False, index=True)
+
+    # 피추천인 (추천받아 가입한 사람)
+    referred_user_id = Column(Integer, ForeignKey("users.id"), nullable=False, index=True)
+
+    # 결제 금액 (피추천인이 충전한 금액 USD)
+    payment_amount = Column(Float, nullable=False)
+
+    # 보상 금액 (결제 금액의 X%)
+    reward_amount = Column(Float, nullable=False)
+
+    # 보상 상태: pending(대기), credited(적립), withdrawn(출금)
+    status = Column(String(20), default="pending")
+
+    # 출금 요청 ID (출금 시 연결)
+    withdrawal_request_id = Column(Integer, ForeignKey("withdrawal_requests.id"), nullable=True)
+
+    # 타임스탬프
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    credited_at = Column(DateTime(timezone=True), nullable=True)  # 적립 시각
+
+    # Relationships
+    referrer = relationship("User", foreign_keys=[referrer_id], backref="referral_rewards_given")
+    referred_user = relationship("User", foreign_keys=[referred_user_id], backref="referral_rewards_received")