i think most of this works lole

app/models/file.py

@@ -1,5 +1,6 @@
 from sqlalchemy import Column, Integer, String, DateTime, JSON
 from sqlalchemy.sql import func
+from sqlalchemy.orm import relationship
 from app.db.database import Base
 
 
@@ -11,7 +12,11 @@ class File(Base):
     file_type = Column(String)
     content_type = Column(String)
     path = Column(String)
-    size = Column(Integer)  # File size in bytes
+    size = Column(Integer)
     file_metadata = Column(JSON)
     created_at = Column(DateTime(timezone=True), server_default=func.now())
-    updated_at = Column(DateTime(timezone=True), onupdate=func.now())
+    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
+    deleted_at = Column(DateTime(timezone=True), nullable=True)
+
+    # Relationships
+    manabox_import_staging = relationship("ManaboxImportStaging", back_populates="file")