fix: SHA256-based dedup — same version different file now re-scans

guarddog_nexus/models.py

@@ -3,17 +3,7 @@
 import datetime
 from enum import Enum
 
-from sqlalchemy import (
-    JSON,
-    Boolean,
-    DateTime,
-    ForeignKey,
-    Integer,
-    String,
-    Text,
-    UniqueConstraint,
-    func,
-)
+from sqlalchemy import JSON, Boolean, DateTime, ForeignKey, Integer, String, Text, func
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
 from guarddog_nexus.database import Base
@@ -28,9 +18,6 @@ class ScanStatus(str, Enum):
 
 class Scan(Base):
     __tablename__ = "scans"
-    __table_args__ = (
-        UniqueConstraint("package_name", "package_version", "repository", name="uq_scan_pkg"),
-    )
 
     id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
     package_name: Mapped[str] = mapped_column(String(255), nullable=False)