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/visitor.py

@@ -0,0 +1,111 @@
+"""
+Visitor tracking models for analytics
+"""
+from sqlalchemy import Column, Integer, String, DateTime, Text, Index
+from sqlalchemy.sql import func
+from ..database import Base
+
+
+class VisitorLog(Base):
+    """
+    Raw visitor log - tracks every page visit
+    IP addresses are hashed for privacy
+    """
+    __tablename__ = "visitor_logs"
+
+    id = Column(Integer, primary_key=True, index=True)
+
+    # Visitor identification (hashed for privacy)
+    visitor_hash = Column(String(64), nullable=False, index=True)  # SHA256 hash of IP + User-Agent
+    ip_hash = Column(String(64), nullable=False)  # SHA256 hash of IP only
+
+    # Session tracking
+    session_id = Column(String(64), nullable=True, index=True)  # Cookie-based session ID
+    user_id = Column(Integer, nullable=True, index=True)  # If logged in
+
+    # Page information
+    page_path = Column(String(500), nullable=False, index=True)
+    page_title = Column(String(200), nullable=True)
+    referrer = Column(String(1000), nullable=True)
+    referrer_domain = Column(String(200), nullable=True, index=True)
+
+    # Device information
+    device_type = Column(String(20), nullable=True, index=True)  # mobile, desktop, tablet
+    browser = Column(String(50), nullable=True, index=True)
+    browser_version = Column(String(20), nullable=True)
+    os = Column(String(50), nullable=True)
+    os_version = Column(String(20), nullable=True)
+
+    # Geographic information (from IP geolocation)
+    country = Column(String(50), nullable=True, index=True)
+    country_code = Column(String(5), nullable=True)
+    city = Column(String(100), nullable=True)
+    region = Column(String(100), nullable=True)
+
+    # UTM parameters
+    utm_source = Column(String(100), nullable=True)
+    utm_medium = Column(String(100), nullable=True)
+    utm_campaign = Column(String(100), nullable=True)
+
+    # Timestamp
+    visited_at = Column(DateTime(timezone=True), server_default=func.now(), index=True)
+
+
+class VisitorDailyStats(Base):
+    """
+    Aggregated daily statistics for faster queries
+    Pre-computed by a scheduled task
+    """
+    __tablename__ = "visitor_daily_stats"
+
+    id = Column(Integer, primary_key=True, index=True)
+    stat_date = Column(String(10), nullable=False, unique=True, index=True)  # YYYY-MM-DD
+
+    # Visitor counts
+    total_visits = Column(Integer, default=0)
+    unique_visitors = Column(Integer, default=0)
+
+    # Device breakdown (JSON string)
+    device_breakdown = Column(Text)  # {"mobile": 100, "desktop": 200, "tablet": 20}
+
+    # Browser breakdown (JSON string)
+    browser_breakdown = Column(Text)  # {"Chrome": 150, "Safari": 100, ...}
+
+    # Country breakdown (JSON string)
+    country_breakdown = Column(Text)  # {"MN": 200, "RU": 50, "KR": 30}
+
+    # Top pages (JSON string)
+    top_pages = Column(Text)  # [{"path": "/", "views": 500}, ...]
+
+    # Top referrers (JSON string)
+    top_referrers = Column(Text)  # [{"domain": "google.com", "visits": 100}, ...]
+
+    # Timestamps
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
+
+
+class VisitorSession(Base):
+    """
+    Track visitor sessions for better analytics
+    """
+    __tablename__ = "visitor_sessions"
+
+    id = Column(Integer, primary_key=True, index=True)
+    session_id = Column(String(64), unique=True, nullable=False, index=True)
+    visitor_hash = Column(String(64), nullable=False, index=True)
+    user_id = Column(Integer, nullable=True)
+
+    # Session info
+    first_page = Column(String(500))
+    last_page = Column(String(500))
+    page_count = Column(Integer, default=1)
+
+    # Device/geo info (copied from first visit)
+    device_type = Column(String(20))
+    browser = Column(String(50))
+    country = Column(String(50))
+
+    # Timestamps
+    started_at = Column(DateTime(timezone=True), server_default=func.now(), index=True)
+    last_activity_at = Column(DateTime(timezone=True), server_default=func.now())