add pytesseract

ocr/api/message/views.py

@@ -11,6 +11,7 @@ async def get_all_chat_messages(
         file: UploadFile = File(...)
 ) -> OcrResponseWrapper[OcrResponse]:
     try:
+
         contents = await file.read()
         if file.filename.endswith('.pdf'):
             images = divide_images(contents)