feat: update document tracking to use 'updated_at' timestamp instead of 'last_edited_at'

surfsense_backend/app/tasks/document_processors/base.py

@@ -2,6 +2,8 @@
 Base functionality and shared imports for document processors.
 """
 
+from datetime import UTC, datetime
+
 from langchain_community.document_transformers import MarkdownifyTransformer
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.future import select
@@ -12,6 +14,16 @@ from app.db import Document
 md = MarkdownifyTransformer()
 
 
+def get_current_timestamp() -> datetime:
+    """
+    Get the current timestamp with timezone for updated_at field.
+
+    Returns:
+        Current datetime with UTC timezone
+    """
+    return datetime.now(UTC)
+
+
 async def check_duplicate_document(
     session: AsyncSession, content_hash: str
 ) -> Document | None: