use sanitzed name

app/routers/documents.py

@@ -45,14 +45,14 @@ async def upload_document(
     sanitized_filename = utils.sanitize_filename(file.filename)
     s3_key = utils.document_s3_key(org_id, document_id, sanitized_filename)
 
-    # Prepare metadata
-    metadata_dict = {
-        "org_id": org_id,
-        "document_type": document_type.value,
-        "filename": file.filename,
-        "file_size": str(file_size),
-        "created_at": datetime.utcnow().isoformat()
-    }
+     # Prepare metadata
+     metadata_dict = {
+         "org_id": org_id,
+         "document_type": document_type.value,
+         "filename": sanitized_filename,
+         "file_size": str(file_size),
+         "created_at": datetime.utcnow().isoformat()
+     }
 
     # Upload to S3
     try:
@@ -65,18 +65,18 @@ async def upload_document(
     # Generate download URL
     download_url = s3.presigned_download_url(s3_key)
 
-    # Create metadata response
-    metadata = DocumentMetadata(
-        document_id=document_id,
-        org_id=org_id,
-        document_type=document_type,
-        filename=file.filename,
-        content_type=detected_content_type,
-        file_size=file_size,
-        s3_key=s3_key,
-        created_at=datetime.utcnow(),
-        updated_at=datetime.utcnow()
-    )
+     # Create metadata response
+     metadata = DocumentMetadata(
+         document_id=document_id,
+         org_id=org_id,
+         document_type=document_type,
+         filename=sanitized_filename,
+         content_type=detected_content_type,
+         file_size=file_size,
+         s3_key=s3_key,
+         created_at=datetime.utcnow(),
+         updated_at=datetime.utcnow()
+     )
 
     logger.info(f"Upload completed - document_id: {document_id}")
     return UploadResponse(document_id=document_id, metadata=metadata, download_url=download_url)