factor extraction pipeline ready (#16)

* run the code

* update code

* remove some redundant code

---------

Co-authored-by: xuyang1 <xuyang1@microsoft.com>

rdagent/document_process/document_reader.py

@@ -5,18 +5,12 @@ from pathlib import Path
 import yaml
 from azure.ai.formrecognizer import DocumentAnalysisClient
 from azure.core.credentials import AzureKeyCredential
-from finco.conf import FincoSettings as Config
-
-if TYPE_CHECKING:
-    from langchain_core.documents import Document
+from rdagent.core.conf import FincoSettings as Config
+from rdagent.core.prompts import Prompts
 
+from langchain_core.documents import Document
 from langchain.document_loaders import PyPDFDirectoryLoader, PyPDFLoader
 
-with (Path(__file__).parent / "util_prompt.yaml").open(encoding="utf8") as f:
-    UTIL_PROMPT = yaml.safe_load(
-        f,
-    )
-
 
 def load_documents_by_langchain(path: Path) -> list:
     """Load documents from the specified path.