updated the architecture

app/models/scan.py

@@ -0,0 +1,27 @@
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import DateTime, ForeignKey, Integer, JSON, String
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.database import Base
+
+
+class ScanResult(Base):
+    __tablename__ = "scan_results"
+
+    id: Mapped[str] = mapped_column(
+        String(36), primary_key=True, default=lambda: str(uuid.uuid4())
+    )
+    user_id: Mapped[str] = mapped_column(
+        String(36), ForeignKey("users.id"), index=True
+    )
+    url: Mapped[str] = mapped_column(String(2048))
+    security_score: Mapped[int] = mapped_column(Integer)
+    layers: Mapped[dict] = mapped_column(JSON)
+    issues: Mapped[list] = mapped_column(JSON)
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), default=lambda: datetime.now(timezone.utc)
+    )
+
+    user = relationship("User", back_populates="scans")